Home page of the microscope service parts, repair and spare parts online catalog - Sermik-Oplatek Mikroskopservice Dresden f.n.n.Z

Description of this part for the microscope.

Jenapol
- Carl Zeiss Jena Jenalumar

This cover serves two main functions in the microscope:
- it protects the power supply and all electrical components built into the microscope base, protecting both the electrical system and the user from electric shock
- it protects the optical components located inside the microscope base from dust and other contamination

The base of Carl Zeiss Jena Jenaval, Jenalumar and similar microscopes contains part of the optical light path, and this area occasionally requires maintenance, especially cleaning. Since these microscopes are now more than 30 years old, it is not uncommon to find examples with this cover missing because it has been lost over the years.

Description of this part for the microscope.

Jena microscope models:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- can also be installed in a Carl Zeiss Jena Jenavert microscope to add transmitted-light capability

This component is located inside the microscope base. It receives the light beam from the illuminator, homogenises it (by diffusing the image of the lamp filament using a frosted filter acting as a diffuser) and then properly collimates it using a collimating lens. The prepared light beam then passes through another lens before reaching the right-angle mirror (sold as a separate component).

This part is well known on the secondary market among hobbyists and engineers building their own DIY optical projects, where it is frequently reused.

Interestingly, microscope versions intended exclusively for reflected-light operation (for example, the basic versions of the Carl Zeiss Jena Jenavert) do not contain this component because they do not have a transmitted-light optical path. However, both the microscope arm and the microscope base are identical to those used in transmitted-light models. This makes it possible to upgrade such an EPI microscope for transmitted-light operation by installing the complete lower transmitted-light optical path. The component offered here is one of the parts required for this conversion.

In the last photograph, an arrow indicates where this component is located inside the microscope, making it easy to identify.

Description of this part for the microscope.

Jena microscope models:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- Carl Zeiss Jena Jenavert

This component serves almost exclusively a cosmetic purpose. At both the top and bottom of the sheet-metal cover there are openings through which the long screws pass. These screws secure the transmitted-light lamp housing to the rear of the microscope body (at the bottom) or the reflected-light EPI lamp housing (at the top).

Each microscope has two of these sheet-metal covers - one on the left side and one on the right. Both are identical, so there is no difference between the left-hand and right-hand cover.

The cover is attached using ordinary adhesive and, after many years, it may simply come loose and fall off. These covers are also sometimes lost during repairs or maintenance, so older microscopes are often missing them. Reattaching an original cover is an easy way to restore the microscope to its original appearance.

In the last photograph, an arrow indicates where this component is located on the microscope, making it easy to identify.

Description of this part for the microscope.

models:
1. Carl Zeiss Jena Jenaval
2. Carl Zeiss Jena Jenalumar
3. Carl Zeiss Jena Jenapol
4. Carl Zeiss Jena Jenavert

1. In Carl Zeiss Jena Jenaval microscopes, this lamp house is used as the transmitted-light illuminator.

2a. In Carl Zeiss Jena Jenalumar 50 microscopes (equipped with the small HBO 50 fluorescent lamp house, identical to the one used in Carl Zeiss Jena Jenamed Fluorescence microscopes), this lamp house serves as the transmitted-light source.

2b. Carl Zeiss Jena Jenalumar 250 microscopes are equipped with a large integrated lamp house. The unit offered here is therefore not compatible with this model.

3. In Carl Zeiss Jena Jenapol microscopes, this halogen lamp house is used both for transmitted light (mounted underneath) and for reflected light (mounted on the top). However, some Jenapol versions are equipped only for transmitted-light operation or only for reflected-light operation.

4. Carl Zeiss Jena Jenavert microscopes are normally equipped with a different lamp housing for reflected light. However, when the original unit is missing, users often modify a lamp house like the one offered here for DIY projects. In addition, if a Jenavert is equipped with a transmitted-light optical path, this lamp house is used as its transmitted-light source.

The lamp house is attached to the microscope using two long screws. Unusually - and this often makes them difficult to find - the screws are removed FROM THE FRONT of the microscope. Their heads are accessible through openings in the white sheet-metal side covers of the microscope body. These covers with the screw openings are shown in this database under item number 99692.

This lamp house contains a filter wheel with four positions for 32 mm diameter round filters. It is fitted with the same filter configuration originally supplied by Carl Zeiss Jena for the Jenaval model:
- one position is empty
- Carl Zeiss Jena C312 blue filter
- Carl Zeiss Jena D282 grey filter
- Carl Zeiss Jena V231 green filter

The filter wheel is an optional part of this lamp house. The example offered here is fitted with it, but it can be removed and the illuminator will still function perfectly as a light source.

Cast or injection-moulded ZnAl components manufactured by Carl Zeiss Jena carry identification numbers. The housing of this lamp house bears the number 2670 (full marking: 2670 Si10 CZ).

In the last photograph, an arrow indicates where this component is located in the microscope, making it easy to identify.

Description of this part for the microscope.

transformer assembly installed inside the microscope base. It converts an input voltage of 110-240 V into a 6 V output with a maximum power of 25 W. It is intended to power a halogen lamp house. An example of this lamp house can be found in this database under item number 99693.

This is not the power supply for the 50W/100W reflected-light lamp housing used on the Carl Zeiss Jena Jenavert. It is also not the power supply for the fluorescent lamp houses used on the Carl Zeiss Jena Jenalumar.

Compatible with the following microscope models:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- Carl Zeiss Jena Jenavert

If you only need one component from this assembly - for example the transformer, one of the electronic circuit boards or just the potentiometer used to adjust the lamp brightness - please contact us by email or through our social media channels.

This complete assembly may be useful for solving the following microscope problems, among others:
- if the microscope illumination no longer works because of a faulty power supply. This may be caused by mains voltage surges, ageing electronic components or damage resulting from incorrect modifications (for example, conversion to LED lighting)
- if the illumination works but the brightness can no longer be adjusted because the potentiometer is worn out or defective

Originally, the complete power supply assembly (transformer, electronic circuit boards and wiring) is installed inside the microscope base, and it is offered here exactly in that configuration. How can it be used?
- the electrical components can be removed and used as spare parts to repair a damaged power supply
- the complete microscope base can be transplanted to another microscope (please note that it does not include any optical components)

An interesting DIY modification is to leave the power supply in the base offered here and then place the microscope on top of that base. This effectively raises the microscope while also providing an integrated power supply for a second lamp house.

Description of this part for the microscope.

microscope models:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- can also be installed in a Carl Zeiss Jena Jenavert microscope to add transmitted-light capability

This component is located inside the microscope base and enables the microscope illumination to be adjusted according to the Köhler illumination principle.

Interestingly, microscope versions intended exclusively for reflected-light operation (for example, the basic versions of the Carl Zeiss Jena Jenavert) do not include this transmitted-light field diaphragm because they do not have a transmitted-light optical path. However, the microscope base is identical to that used in transmitted-light models. This makes it possible to upgrade such an EPI microscope for transmitted-light operation by installing the complete lower transmitted-light optical path. The field diaphragm offered here is one of the components required for this conversion.

In the last photograph, an arrow indicates where the transmitted-light field diaphragm is located inside the microscope base, making this component easy to identify.

Description of this part for the microscope.

unscrewed. It is mounted onto the dovetail guide located underneath the microscope stage carrier and secured with a clamping screw.

Carl Zeiss Jena Ergaval microscopes were originally equipped with a condenser attached to the "MO" holder. This holder has a permanently mounted iris diaphragm and wide-field lens, while the condenser itself is screwed into the upper thread. In this configuration, the condenser cannot be exchanged.
The Carl Zeiss Jena Fluoval uses a similar arrangement, whereas the Carl Zeiss Jena Amplival was originally equipped with a panchromatic condenser.

If the user wishes to use other condensers (including those made by manufacturers other than Carl Zeiss Jena), the original condenser holder must be replaced with the MZ condenser holder. Once this has been done, any microscope condenser with a mounting diameter of 39.5 mm can be installed. Condensers with a 37 mm mounting diameter can also be used if they are fitted with a suitable adapter ring.

This is exactly such a holder for interchangeable condensers.

Basic specifications:
Manufacturer: Carl Zeiss Jena
Original documentation name and model: Kondensor-Einhänger MZ
Colour: grey, the version manufactured for the Mikroval microscope series
Internal diameter: for mounting condensers with a 39.5 mm mounting diameter (for example the Carl Zeiss Jena cardioid darkfield condenser)
Condenser retaining screw: yes, central condenser clamping screw
Centering screws: yes, two condenser centering screws
Microscope mounting: dovetail

Although this component is grey, it is also compatible with older black Carl Zeiss Jena microscopes from the 1950s and 1960s (it simply will not look completely original unless it is repainted).

This condenser holder is compatible with, among others:
- Carl Zeiss Jena Ng (black microscope)
- Carl Zeiss Jena Polmi-A (black microscope)
- Carl Zeiss Jena Nf (black microscope)
- Carl Zeiss Jena Nu (the NU-2 version is grey)
- Carl Zeiss Jena Ergaval (grey microscope)
- Carl Zeiss Jena Fluoval / Fluoval-2 (grey microscope)
- Carl Zeiss Jena Amplival and its variants (grey microscope)
- Carl Zeiss Jena Docuval (grey microscope)

Various names are used for this microscope component, including:
- condenser holder
- condenser carrier
- condenser mount
- condenser support

The last photograph includes an excerpt from the original manufacturer's documentation. An arrow indicates this exact model of condenser holder, making it easy to identify the component.

Description of this part for the microscope.

unscrewed. It is mounted onto a dovetail guide located underneath the microscope stage carrier. The condenser holder is secured to the guide with a clamping screw.

It can accommodate any microscope condenser with a mounting diameter of 39.5 mm, regardless of the manufacturer. Condensers with a 37 mm mounting diameter can also be used if they are fitted with a suitable adapter ring.

Basic specifications:
Manufacturer: Carl Zeiss Jena
Original documentation name and model: Kondensor-Einhänger MZ
Colour: black, the version manufactured for the black Carl Zeiss Jena microscopes from the 1950s and 1960s
Internal diameter: for mounting condensers with a 39.5 mm mounting diameter (for example the Carl Zeiss Jena cardioid darkfield condenser)
Condenser retaining screw: yes, central condenser clamping screw
Centering screws: yes, two condenser centering screws
Microscope mounting: dovetail

Although this microscope component is black, it is also compatible with the newer grey Carl Zeiss Jena microscopes of the Mikroval series.

This condenser holder is compatible with, among others:
- Carl Zeiss Jena Ng (black microscope)
- Carl Zeiss Jena Polmi-A (black microscope)
- Carl Zeiss Jena Nf (black microscope)
- Carl Zeiss Jena Nu (the NU-2 version is grey)
- Carl Zeiss Jena Ergaval (grey microscope)
- Carl Zeiss Jena Fluoval / Fluoval-2 (grey microscope)
- Carl Zeiss Jena Amplival and its variants (grey microscope)
- Carl Zeiss Jena Docuval (grey microscope)

Various names are used for this microscope component, including:
- condenser holder
- condenser carrier
- condenser mount
- condenser support

The last photograph includes an excerpt from the original manufacturer's documentation. An arrow indicates this exact model of the condenser holder, making it easy to identify the component.

Description of this part for the microscope.

reflector, performs two functions:
- it contains a barrier filter (emission filter) for the 450 nm wavelength
- it acts as an angular mirror, reflecting the light beam from the EPI fluorescence illuminator vertically downward through the objective toward the specimen.

This fluorescence filter cube fits the following EPI fluorescence microscopes:
- Carl Zeiss Jena Fluoval Fluoreszenz
- Carl Zeiss Jena Fluoval-2 (built on the Carl Zeiss Jena Amplival microscope platform)

Important - this microscope component does not fit the first version of the Carl Zeiss Jena Fluoval microscope. The Fluoval microscope (without "2") does not use a filter cube. Instead, it has a simple permanently mounted swing-out barrier filter.

The filter cube has two positions:
- empty, for normal transmitted-light operation
- 450 nm for reflected-light fluorescence (EPI) operation

Mechanically, this filter cube is installed between the objective nosepiece and the microscope head. It slides into a dedicated slot and moves along a dovetail guide. On the Carl Zeiss Jena Laboval Fluoreszenz microscope, this slot is located in the additional upper horizontal arm of the EPI fluorescence illuminator. On the Carl Zeiss Jena Fluoval-2 microscope, the slot is located in the EPI fluorescence arm, which is an integral part of the microscope. The Fluoval-2 is based on the Carl Zeiss Jena Amplival microscope, which has a modular design. Mechanically, the Fluoval-2 is essentially an Amplival equipped with an upper EPI fluorescence arm.

Sliding the cube along this dovetail guide switches between the empty position (transmitted light) and EPI fluorescence with the 450 nm filter.

Description of this part for the microscope.

converting the horizontal rotation of the focusing knob into precise vertical movement.

This is a complete assembly consisting of the following components:
- fine focus gear block
- two steel movable blocks with bearing balls

Users refer to this microscope component by various names. These include:
- fine focus mechanism
- fine focus assembly
- fine focus drive
- gear block / gear assembly
- focus drive

Description of this part for the microscope.

diameter: 23.2 mm

This eyepiece allows the microscope image to be projected onto a surface such as a wall, ceiling or projection screen.

Originally, this eyepiece model was supplied with the Carl Zeiss Jena Pictoval projection microscope. It can also be installed on virtually any microscope from any manufacturer with a 23.2 mm eyepiece tube.

Important: Projecting a microscope image requires a very large amount of light, so a high-power illuminator is necessary.

Description of this part for the microscope.

are equipped with a base illuminator using a 6 V 15 W lamp. This can be replaced with:
a) a large 60-watt illuminator using a 12 V 60 W lamp
b) a halogen illuminator

This listing presents the illuminator described in option a), namely the 60 W incandescent lamp version.

Basic specifications of this illuminator:
Manufacturer: Carl Zeiss (Oberkochen, West Germany)
Model: 60-watt illuminator
Lamp voltage: 12 V
Lamp house mounting method: circular dovetail
Cooling: passive. The entire large lamp house also serves as a heat sink, dissipating the heat generated by the 60-watt lamp
Lamp socket centering screws: yes, the lamp socket is equipped with centering screws
Diffuser: yes, inside the lamp house, in front of the lamp condenser lens (the so-called illumination collector), there is a matte diffuser mounted in a flip-out holder

This particular unit was removed from a Carl Zeiss Photomicroscope II. However, it is compatible with most microscopes of the Zeiss Standard series.

This illuminator fits the following microscopes:
- Zeiss Standard 16 / GFL
- Zeiss Standard WL / WL 89
- Zeiss Universal
- Zeiss Photomicroscope
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS
- and also the Zeiss IM 35 / ICM 405 inverted microscope

The following is a quotation from the Zeiss Photomicroscope II instruction manual:

60-watt illuminator

Instead of the 6-v. 15-w base illuminator, the 60-watt illuminator may be firmly connected to the microscope stand. For this purpose, the collector tube with lamp condenser, 46 70 50, must be removed after unscrewing the bottom plate and replaced by the connecting tube, 46 70 41 (Fig. 15). The 60-watt illuminator is mounted in the usual manner with the aid of a dovetail ring, like a body tube, for example.

The variable transformer is identical to the one for the base illuminator and supplies voltages from 0 ... 20 volts. When this equipment is used, the red scale of the voltmeter applies.

Several important points should be mentioned:
- if your microscope is currently equipped with the standard 6 V 15 W illumination system, the illuminator mounting adapter must also be replaced (this is described in the instruction manual quoted above)
- the lamp house of this illuminator is finished in grey. Some Carl Zeiss Standard series microscopes have black, cream or hammered-finish housings. This illuminator is mechanically compatible with those models, although the colour may not be an aesthetically perfect match
- power supplies with a rated output of exactly 60 W are virtually unavailable on the second-hand market. In practice, 12 V 100 W power supplies are used to operate this light source
- please note that exactly the same (!) illuminator is also used on the Zeiss IM 35 / ICM 405 inverted microscopes. Please also refer to the description of illuminator No. 00697 in this database. YES - these are exactly the same illuminators. However, that particular unit was removed from an inverted microscope and therefore has its own separate description. You will also find additional photographs there. In the Zeiss IM 35 instruction manual, the lamp socket is referred to as "Lamp socket 60 P/N 46 80 15", while the lamp house is referred to as "Lamp housing with lamp condenser P/N 46 72 27"
- this illuminator can be used for both transmitted-light and reflected-light (EPI) illumination
- if you would like to manufacture your own DIY illuminator mounting adapter because you do not have the original Zeiss part (P/N 46 70 41), the following information may be useful: the circular dovetail on this illuminator has a diameter of 43 mm, which is the same as on many microscope condensers and mono-, binocular and trinocular microscope heads. This means that, for example, a microscope head mounting adapter can be used as the basis for manufacturing a custom DIY illuminator adapter

Important: The photographs show a lamp installed in the lamp socket. This lamp DOES NOT LIGHT because it is burned out. It is shown only so that you can see which lamp model is used in this illuminator.

Description of this part for the microscope.

This filter is mounted in the sheet-metal housing of the large HBO 250W fluorescence illuminator. This illuminator is part of a large mirror light beam splitter used in Carl Zeiss Jena Jenalumar microscopes. The KG filter is designed to absorb heat (infrared radiation) emitted by the high-pressure HBO mercury lamp.

Please note that there is also a version of the Carl Zeiss Jena Jenalumar microscopes with a small 50W HBO illuminator. This KG filter glass was removed from a large 250W illuminator.

On the used market, in microscopy forums and in microscopy groups, several names are used for this filter, all referring to the same type of filter:
- KG filter / KG glass
- heat filter
- heat absorbing filter
- heat absorption filter
- heat-absorbing glass
- heat absorption glass
- absorption filter
- IR filter
- infrared blocking filter
- infrared cut filter
- KG3 heat absorption filter

This microscope element is highly susceptible to damage. When this happens, the filter needs to be replaced, for example with the filter presented here. Here are examples of damage that can occur during use of the fluorescence illuminator and reasons why replacement of the filter may be necessary:
- the KG filter may crack or become cloudy due to overheating
- the filter may also chip or break as a result of mechanical damage, for example during transport
- the filter may sometimes be damaged during improper maintenance

High-performance heat filters such as this KG filter used with a 250W lamp are very often used by people building their own DIY projects. The housing with screw mounting makes this particularly convenient.

The last photo in the gallery shows the housing of the HBO 250W illuminator (lampenhaus), with an arrow indicating which element is being described and where it is located inside the illuminator. This makes it possible to identify the element unambiguously.

Description of this part for the microscope.

susceptible to damage, and good and efficient passive cooling is very important in an HBO 250W illuminator.

In Carl Zeiss Jena Jenalumar microscopes, the large HBO 250W fluorescence illuminator is attached to the Spiegelhaus for light beam splitting. It has two such heat sinks - one at the bottom and one at the top of the lamp housing.

For certainty, the photo gallery shows the exact dimensions of this element. The last photo shows the complete illuminator from which this element was removed, allowing the compatibility to be confirmed with certainty.

Description of this part for the microscope.

fluorescence illuminator behind the high-pressure mercury burner. In Carl Zeiss Jena Jenalumar microscopes, the large HBO 250W fluorescence illuminator is attached to the Spiegelhaus for light beam splitting.

The function of this element is to collect and reflect toward the KG filter the light that "shines and escapes to the rear".

This mirror, located directly next to the light source, is susceptible to damage, among other things due to exposure to high temperatures. Additionally, when the high-pressure mercury burner explodes (which occasionally happens), the mirror is very often damaged by the explosion.

The photo gallery shows the exact dimensions of this element. The last photo shows the HBO 250W illuminator for a Carl Zeiss Jena Jenalumar microscope, allowing the compatibility to be confirmed with certainty.

Description of this part for the microscope.

interface into which the microscope head is inserted and secured. It makes no difference whether a binocular or trinocular microscope head is mounted in this fitting.

- the inner diameter of this microscope head mount is 44 mm
- this mounting ring is attached to the microscope stand with three screws
- the ring has two small screws that both center and secure the microscope head, as they engage with the dovetail groove of the microscope head
- thanks to these screws, microscope heads with a dovetail diameter from 42.5 mm to 44 mm can be mounted in the ring
- the main spring-loaded clamping screw

This head mount was removed from a Carl Zeiss ICM 405 microscope, but it is also suitable for the IM 35 model.

The photos show the dimensions and exact appearance of this microscope component from multiple angles. Additionally, the last photo clearly shows where this head mount is located in the microscope.

Description of this part for the microscope.

the microscope body (see the last photo in the gallery). It is a replaceable component - the manufacturer provides various adapters for connecting different cameras at this location.

Basic parameters of this adapter:
Manufacturer: Carl Zeiss (Oberkochen, West Germany)
Catalog number: 47 17 78 (another notation: 471778)
Mounting to the microscope body: 50 mm diameter dovetail ring
Camera mounting to the adapter: ring with a 70 mm inner diameter
Clamping screw: yes, there is a screw for securing the camera

This camera mount was removed from a Carl Zeiss ICM 405 microscope, but it fits any microscope with a compatible mounting interface. It originally had an analog Zeiss M35 camera mounted in it.

The photos show the dimensions and exact appearance of this component from multiple angles. Additionally, the last photo shows the Zeiss ICM 405 microscope with an arrow indicating where this component is located on the microscope. This allows the component to be accurately identified and located.

The Carl Zeiss ICM 405 inverted microscope is an advanced version of the Carl Zeiss IM 35 inverted microscope. The main differences between the ICM 405 and the IM 35 are the ICM 405's more advanced microphotography capabilities.

However, many users treat these two models as essentially the same microscope and use the name "Zeiss IM 35" for both, sometimes only specifying that it is a "Zeiss IM 35 with photo output".

Both models were also sold under the Opton brand, in which case they are respectively called Opton IM 35 and Opton ICM 405. Users often refer to them as a "Zeiss Opton microscope".

Description of this part for the microscope.

Mechanically, this photo tube is mounted inside the microscope body, below the microscope head mount. It splits the light beam (image) travelling through the microscope head and eyepieces to the user's eyes. Part of the light beam is directed to the universal photo output.

Basic parameters of this photo tube:
Manufacturer: Carl Zeiss (Oberkochen, West Germany)
Catalog number: 47 17 72 (other notation: 471772 or 471772-9901)
Mounting to the microscope body: the tube is mounted inside the microscope, with only the adjustable output extending to the outside (a simple tube)
Camera mounting to the adapter: a straight tube with an inner diameter of 35 mm extends from the side of the microscope body. The outer diameter of the mounting section is approx. 39 mm
Focus adjustment: yes, the tube has a helical focusing ring for precise focus adjustment
Light beam splitting mode: the light beam is split (it is not 0/100 or 100/0), unfortunately I do not know the percentage of the light split (no documentation available)
Light-splitting element: partially reflecting beam-splitting mirror (not a cemented prism block)

This photo tube was removed from a Carl Zeiss ICM 405 microscope. However, it is a completely universal light-splitting tube, so with suitable DIY mounts it can be used in practically any microscope or other optical device (astronomical telescope, binoculars, spotting scope, spectrophotometer, etc.). The universal interface for connecting an image-recording device (a straight tube with a 35 mm inner diameter) allows, among other things, the use of digital cameras or DSLR cameras (with suitable adapters). Since the light beam is split, this output can be used for "simul-focal live" observation, meaning that in real time the same image can be seen simultaneously through the microscope eyepieces and by the camera.

The photos show the dimensions and exact appearance of this component from multiple angles. Additionally, the last photo shows the Zeiss ICM 405 microscope with an arrow indicating where this component is located on the microscope. This allows the component to be accurately identified and located.

The Carl Zeiss ICM 405 inverted microscope is an advanced version of the Carl Zeiss IM 35 inverted microscope. The main differences between the ICM 405 and the IM 35 are the ICM 405's more advanced microphotography capabilities.
However, many users treat these two models as essentially the same microscope and use the name "Zeiss IM 35" for both, sometimes only specifying that it is a "Zeiss IM 35 with photo output".
Both models were also sold under the Opton brand, in which case they are respectively called Opton IM 35 and Opton ICM 405. Users often refer to them as a "Zeiss Opton microscope".

Note: In one discussion on the Mikroskopie-Forum.de forum, it is mentioned that this tube was also used in Carl Zeiss Axiomat microscopes. The user refers to this component as "Zeiss 47 17 72-9901 Kino- und TV-Anschluß", but I do not have documentation for this component and therefore cannot confirm this.

Description of this part for the microscope.

head in Carl Zeiss Jena Pictoval projection microscopes (microprojectors). The adjustable tilt angle of the eyepiece tube, which held a projection eyepiece (usually f=100), allowed the position of the projected image on the projection surface to be changed.

Basic parameters:
Manufacturer: Carl Zeiss Jena
Eyepiece mounting diameter: 23.2 mm
Mounting to the microscope arm: 41 mm diameter dovetail ring

Because this microscope head has a Carl Zeiss Jena standard microscope mount (a 41 mm diameter dovetail ring), it can be mounted on most microscopes from this manufacturer (e.g. Carl Zeiss Jena Eduval, Laboval, Ergaval, Amplival, etc.), as well as on microscopes made by Lomo (e.g. Lomo Biolam), IOR and Meopta.

It seems useful to mention a few points:
- never look through this microscope head with the naked eye if a projection eyepiece is installed in it and the head is mounted in a Carl Zeiss Jena Pictoval microprojector. This may result in loss of eyesight due to the very high light output emitted by this microscope
- when mounting this microscope head on a microscope other than a Carl Zeiss Jena Pictoval, a different magnification scale may be obtained than with the original heads designed for the particular microscope model
- projecting a microscope image requires a great deal of light, i.e. a powerful illuminator. This is worth remembering if you intend to use this head to project an image from biological microscopes with standard incandescent illumination (e.g. 15 W 6 V), which is definitely not sufficient
- visual observation using this microscope head may be inconvenient because it has a different (smaller) tilt angle than standard monocular or binocular microscope heads

Description of this part for the microscope.

microscopes:
- Zeiss Standard WL
- Zeiss Universal
- Zeiss Photomicroscope I
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS

There are two such roller guides in the focusing block (the so-called gear block) - one on the right side and one on the left side of the block. Both are identical.

Users and people involved in microscope repair and restoration very often use other names for this component, including incorrect ones, such as:
- bearing guide
- roller rail
- rail with ball bearings
- ball bearing guide

Description of this part for the microscope.

here is not a standalone lamp housing (such as part number 99693 in this database). It is an internal component of the large, integrated illuminator used in Carl Zeiss Jena Jenalumar 250 microscopes.

Carl Zeiss Jena Jenalumar microscopes are available in two main versions:
1. with two small illuminators - with a separate 6 V 25 W halogen illuminator in a small housing (for transmitted light) and a separate HBO 50 W fluorescence illuminator in a small housing (for reflected light)
2. with a large, integrated module consisting of a mirror light splitter, an integrated transmitted-light module with a 6 V 25 W halogen lamp, and a large lamp housing for HBO 250 W fluorescence illumination

The component offered here is part of the second version of the Jenalumar microscope.

Basic parameters of this illuminator module:
Supported lamp: Narva HLWS 6 V 25 W halogen lamp
6 V power connection: this illuminator is connected to the distributor rail (see part number 99679 in this database)
Cooling: passive, in two ways. The Narva HLWS lamp has integrated cooling in the form of "wings", while the entire illuminator is covered with a cover incorporating a finned heat sink (this is a separate component and is not part of the illuminator offered here)

The photo gallery shows the exact dimensions of this component. The last photo shows the complete HBO 250 W illuminator for the Carl Zeiss Jena Jenalumar microscope, with an arrow indicating this halogen illuminator module. This makes it possible to identify exactly where this component is located within the complete large microscope illuminator.

Description of this part for the microscope.

integrated element that is mechanically mounted at the very top of the AmScope T720 / T720Q microscope. It consists of:
- binocular eyepiece head
- angled tube
- output for the third optical light path, i.e. photo output

Basic technical parameters:
Manufacturer: AmScope
For model: AmScope T720 series microscopes
Diameter of supported eyepieces: 30 mm
Method of mounting to the microscope: dovetail with a diameter of 52 mm
Photo output diameter: 23.2 mm internal, 32 mm external

Replacement of the microscope head in the AmScope T720 may be necessary, for example:
- if you have a microscope purchased on the used market and the microscope head is missing, which is not uncommon because this element can be unscrewed
- if the binocular head has broken off from the entire upper photo tube in your microscope. Such damage is common when the microscope is hit during transport
- if the optics in the existing microscope head have been damaged: lenses or prisms. This may include scratches caused by improper cleaning, delamination of prisms, or cracked lenses

Description of this part for the microscope.

yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Focal length: 45 mm
Immersion: yes, oil immersion
Thread: RMS

Only towards the end of its operations did Hertel & Reuss begin producing microscopes with objectives having a 45 mm parfocal length. These were the Hertel & Reuss Labopan and Superpan models. Previously, microscopes from this company used objectives with a 37 mm parfocal length.

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives with TL=160 mm. Several examples of such microscopes are listed in the "Compatibility" section, but this is not a complete list.

Description of this part for the microscope.

1960s, several Japanese companies produced microscopes based on Olympus designs. These included, among others, the following companies:
- Hitos Tokyo
- SWIFT Japan
- Union Optical
- Magna Tokyo
- Tiyoda Tokyo
- Yoshida
- Correct Tokyo
- ASA Tokyo
- ERMA Optical Works Tokyo
- Shimadzu Kalnew (Tokyo)
These eyepieces are an excellent complement to these microscopes.

Description of this part for the microscope.

65
Magnification: 40x
Numerical aperture N.A.: 0,65
Tube length: 160 mm
Focal length: 45 mm
Cover glass: 0.17 mm
Immersion: No
Thread: RMS

Description of this part for the microscope.

meters:
Manufacturer: Carl Zeiss Jena
Designation: Apl. 1,4
Name of the mount according to the manufacturer's catalogue: Kondensoreinhänger mfl 2, Bestellnummer 301080:021.26/0
Name of the condenser according to the manufacturer's catalogue: Aplanatischer Kondensor 1.4 mo / ms (applies only to the upper optical part)
Name of the condenser according to the manufacturer's catalogue: Kondensor hoher Lichtstärke mit Vorschaltsystem (applies to the entire module)
Version: grey colour with a black upper lens. Variant with a "dot" in the name after "Apl"
Numerical aperture N.A.: 1.4
Aperture diaphragm: yes, attached to the condenser mount
Wide-field lens: yes, it can be swung out of the optical path. This is the version with the large lens in a housing (see description below)
Removable upper lens: yes, it can be rotated
Mounting diameter: the optical part (condenser without diaphragm) has a mounting diameter of 39.5 mm and can be unscrewed from the condenser mount
Operating modes: the condenser can be used both as a dry condenser and as an immersion condenser

The entire part consists of the following elements:
- upper Apl. 1,4 lens
- screw-on/removable condenser (mo / ms)
- iris diaphragm screwed onto the condenser mount
- condenser mount model mfl 2
- swing-out wide-field lens
- two centering screws

This condenser is mainly used in Carl Zeiss Jena Fluoval / Fluoval-2 fluorescence microscopes. It is optimal for use with high-numerical-aperture apochromatic microscope objectives. For precisely this reason, users often install it on Carl Zeiss Jena Ergaval and Carl Zeiss Jena Amplival microscopes equipped with apochromatic objectives (Carl Zeiss Jena Apochromat).

It is worth mentioning again that this condenser can be used in two modes:
- without immersion oil on the upper lens of the condenser. In this case, it operates as a "dry condenser" and its numerical aperture N.A. is 0.9.
- with immersion oil on the upper lens of the condenser (i.e. underneath the microscope slide). In this case, it operates as an "immersion condenser" and its numerical aperture N.A. is 1.4, allowing a very bright image to be obtained - this is important in fluorescence microscopy or when using high-N.A. immersion objectives.

During production, this condenser was available in several versions:
- with a black upper lens, a dot in the model name (Apl. 1,4) and a wide-field module consisting of a single lens
- with a black upper lens, without a dot in the model name (Apl 1,4) and a single wide-field module consisting of several lenses (including one with a very small diameter)
- with a grey upper lens marked Apl 1,4mo2 and a single wide-field module consisting of several lenses (including one with a very small diameter)
- with a grey upper lens marked Apl 1,4mo2 and a wide-field module consisting of two independently swing-out lenses, each on its own mount

I have not found any information anywhere as to whether the above-mentioned versions differ in their operation. From experience, I know that they are used interchangeably - but I do not know whether any differences in operation can actually be noticed.

Mechanically, this condenser is mounted on dovetail rails located underneath the microscope stage. In Carl Zeiss Jena Ergaval microscopes, this is a separate condenser mounting block, whereas in Carl Zeiss Jena Fluoval / Amplival microscopes, the dovetail is located on the microscope stage holder block.

The manufacturer describes this condenser as follows: "High-intensity condenser with an auxiliary system for illuminating large fields while imaging the field diaphragm. [...] The condenser of the FLUOVAL 2 can be used as a dry and immersion condenser of the highest aperture to achieve the highest possible excitation intensity. It is equipped with a switchable wide-field system that illuminates the large fields of low-power objectives while providing a sharp image of the field diaphragm in the object plane."

Description of this part for the microscope.

meters:
Manufacturer: Carl Zeiss Jena
Designation: Apl. 1,4
Name of the mount according to the manufacturer's catalogue: Kondensoreinhänger mfl 2, Bestellnummer 301080:021.26/0
Name of the condenser according to the manufacturer's catalogue: Aplanatischer Kondensor 1.4 mo / ms (applies only to the upper optical part)
Name of the condenser according to the manufacturer's catalogue: Kondensor hoher Lichtstärke mit Vorschaltsystem (applies to the entire module)
Version: grey colour with a black upper lens. Variant without the "dot" in the name after "Apl"
Numerical aperture N.A.: 1.4
Aperture diaphragm: yes, attached to the condenser mount
Wide-field lens: yes, it can be swung out of the optical path. This is the version with the large lens in a housing (see description below)
Removable upper lens: yes, it can be rotated
Mounting diameter: the optical part (condenser without diaphragm) has a mounting diameter of 39.5 mm and can be unscrewed from the condenser mount
Operating modes: the condenser can be used both as a dry condenser and as an immersion condenser

The entire part consists of the following elements:
- upper Apl 1,4 lens
- screw-on/removable condenser (mo / ms)
- iris diaphragm screwed onto the condenser mount
- condenser mount model mfl 2
- swing-out wide-field lens
- two centering screws

This condenser is mainly used in Carl Zeiss Jena Fluoval / Fluoval-2 fluorescence microscopes. It is optimal for use with high-numerical-aperture apochromatic microscope objectives. For precisely this reason, users often install it on Carl Zeiss Jena Ergaval and Carl Zeiss Jena Amplival microscopes equipped with apochromatic objectives (Carl Zeiss Jena Apochromat).

It is worth mentioning again that this condenser can be used in two modes:
- without immersion oil on the upper lens of the condenser. In this case, it operates as a "dry condenser" and its numerical aperture N.A. is 0.9.
- with immersion oil on the upper lens of the condenser (i.e. underneath the microscope slide). In this case, it operates as an "immersion condenser" and its numerical aperture N.A. is 1.4, allowing a very bright image to be obtained - this is important in fluorescence microscopy or when using high-N.A. immersion objectives.

During production, this condenser was available in several versions:
- with a black upper lens, a dot in the model name (Apl. 1,4) and a wide-field module consisting of a single lens
- with a black upper lens, without a dot in the model name (Apl 1,4) and a single wide-field module consisting of several lenses (including one with a very small diameter)
- with a grey upper lens marked Apl 1,4mo2 and a single wide-field module consisting of several lenses (including one with a very small diameter)
- with a grey upper lens marked Apl 1,4mo2 and a wide-field module consisting of two independently swing-out lenses, each on its own mount

I have not found any information anywhere as to whether the above-mentioned versions differ in their operation. From experience, I know that they are used interchangeably - but I do not know whether any differences in operation can actually be noticed.

Mechanically, this condenser is mounted on dovetail rails located underneath the microscope stage. In Carl Zeiss Jena Ergaval microscopes, this is a separate condenser mounting block, whereas in Carl Zeiss Jena Fluoval / Amplival microscopes, the dovetail is located on the microscope stage holder block.

The manufacturer describes this condenser as follows: "High-intensity condenser with an auxiliary system for illuminating large fields while imaging the field diaphragm. [...] The condenser of the FLUOVAL 2 can be used as a dry and immersion condenser of the highest aperture to achieve the highest possible excitation intensity. It is equipped with a switchable wide-field system that illuminates the large fields of low-power objectives while providing a sharp image of the field diaphragm in the object plane."

Description of this part for the microscope.

any microscope from any manufacturer that allows the use of eyepieces with a mounting diameter of 23.2 mm.

The company "Dr. G. Schuchardt Göttingen" did not and does not produce microscopes. Previously, it primarily sold microscopes manufactured by Hertel & Reuss and Will Wetzlar under its own brand.

Description of this part for the microscope.

10
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 45 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes using transmitted-light illumination
- with inverted microscopes
- with microscopes with reflected-light illumination
- for macro photography by directly connecting it to a camera

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives for TL=160 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Several facts are worth emphasizing:
- many Hund Wetzlar microscope models are identical to models sold by Will Wetzlar due to their joint production. For example, the BX300 and Wilovert models even have the same name. Therefore, Hund Wetzlar microscope objectives can also be used with Will Wetzlar microscopes.
- the companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel and Kosmos Stuttgart also used Will Wetzlar objectives, so Hund Wetzlar microscope objectives can also be used with microscopes from these manufacturers - but it is worth checking the parfocal length first (37 mm or 45 mm)
- objectives with magnifications below 16x (e.g. 4x / 5x or 10x) fit both classic biological microscopes, microscopes with reflected-light illuminators and inverted microscopes.

Description of this part for the microscope.

25
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 45 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes using transmitted-light illumination
- with inverted microscopes
- with microscopes with reflected-light illumination
- for macro photography by directly connecting it to a camera

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives for TL=160 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Several facts are worth emphasizing:
- many Hund Wetzlar microscope models are identical to models sold by Will Wetzlar due to their joint production. For example, the BX300 and Wilovert models even have the same name. Therefore, Hund Wetzlar microscope objectives can also be used with Will Wetzlar microscopes.
- the companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel and Kosmos Stuttgart also used Will Wetzlar objectives, so Hund Wetzlar microscope objectives can also be used with microscopes from these manufacturers - but it is worth checking the parfocal length first (37 mm or 45 mm)
- objectives with magnifications below 16x (e.g. 4x / 5x or 10x) fit both classic biological microscopes, microscopes with reflected-light illuminators and inverted microscopes.

Description of this part for the microscope.

65
Cover glass: yes, 0,17 mm
Thread: RMS
Tube length: 160 mm
Focal length: 45 mm
Immersion: no (dry objective)
Thread: RMS

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives for TL=160 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

- many Hund Wetzlar microscope models are identical to models sold by Will Wetzlar due to their joint production. For example, the BX300 and Wilovert models even have the same name. Therefore, Hund Wetzlar microscope objectives can also be used with Will Wetzlar microscopes.
- the companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel and Kosmos Stuttgart also used Will Wetzlar objectives, so Hund Wetzlar microscope objectives can also be used with microscopes from these manufacturers - but it is worth checking the parfocal length first (37 mm or 45 mm)

Description of this part for the microscope.

number: 46 07 01 - 9903
Magnification: 40x
Correction: achromatic
Numerical aperture N.A.: 0.65
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0.17 mm
Immersion: no
Thread: RMS
Ph2: phase contrast

This particular specimen was used in a Zeiss KM microscope, but I have also seen this objective model in Zeiss KF-2 ICS and Zeiss Axiostar microscopes. It fits many microscope models from this manufacturer; some examples are listed in the "compatibility" section.

It can be used with any microscope from any manufacturer together with a suitable phase-contrast condenser (or a phase-ring slider). Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm and FL=45 mm.

Description of this part for the microscope.

25
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Focal length: 45 mm
Immersion: yes, oil immersion
Thread: RMS

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives for TL=160 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

- many Hund Wetzlar microscope models are identical to models sold by Will Wetzlar due to their joint production. For example, the BX300 and Wilovert models even have the same name. Therefore, Hund Wetzlar microscope objectives can also be used with Will Wetzlar microscopes.
- the companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel and Kosmos Stuttgart also used Will Wetzlar objectives, so Hund Wetzlar microscope objectives can also be used with microscopes from these manufacturers - but it is worth checking the parfocal length first (37 mm or 45 mm)

Description of this part for the microscope.

based on the N-117M / DN-117M models.

The N-117M / DN-117M is a reasonably good laboratory microscope manufactured in a Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the United Kingdom)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the United Kingdom)
- Apex N-117M (mainly in the United Kingdom)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give their microscopes their own names, just as Delta Optical does in Poland. The best way to check whether this screw fits your microscope is to compare the appearance of your microscope with the microscope from which this screw was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M version has a binocular or trinocular microscope head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, standing for "Digital") - however, the head mounting screw is the same in both cases.

Replacing the head mounting screw may be necessary, for example, when:
- the screw is missing from the microscope, which is common with used microscopes
- the screw in the microscope is bent or broken, which often happens when the microscope is not properly secured for transport
- the screw in the microscope is in poor condition, e.g. damaged because someone tried to force it out with pliers

Description of this part for the microscope.

117M models.

The N-117M / DN-117M is a reasonably good laboratory microscope manufactured in a Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the United Kingdom)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the United Kingdom)
- Apex N-117M (mainly in the United Kingdom)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give their microscopes their own names, just as Delta Optical does in Poland. The best way to check whether this rack fits your microscope is to compare the appearance of your microscope with the microscope from which this rack was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular microscope head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, standing for "Digital") - however, the entire body, and therefore also the condenser height adjustment rack, is the same in both models.

Since the rack of the condenser height adjustment mechanism in this microscope model is made of plastic, it is a component that is very frequently damaged.

Description of this part for the microscope.

117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this nosepiece fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the entire microscope body, and therefore the nosepiece as well, is identical in both models.

Description of this part for the microscope.

mechanical microscope stage, allowing precise movement of the specimen in both the X and Y axes of the stage plane. The manipulator consists of two coaxial knobs, two independent drive shafts and the fixing elements that attach it to the stage mechanism.

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the microscope body is identical, so the stage control handle is also the same in both models.

On the second-hand market and in service documentation one encounters many names referring to this assembly. The most commonly used terms include, among others:
- stage manipulator
- XY stage manipulator
- mechanical stage drive
- stage control knobs
- specimen mover
- coaxial stage drive
- stage drive assembly
- mechanical stage control
- manual XY stage drive
- stage actuator mechanism

Such manipulators very often suffer mechanical damage during transport of the microscope. Because they protrude beyond the outline of the stand, it is precisely they that absorb the impact energy first - in the event of a fall or improper packaging of the instrument.

Damage to the manipulator does not make further work with the microscope impossible. The specimen can be moved by hand, or a simple specimen holder without an XY movement mechanism can be fitted. Such a solution works well at low magnifications; however, when working with objectives of magnifications greater than 40x (e.g. 60x, 63x, 80x or 100x), precise manual movement of the specimen becomes very difficult. At total magnifications exceeding about 400x, even a slight movement of the hand shifts the image by a considerable distance within the field of view. The mechanical manipulator enables very smooth, controlled and repeatable movement of the specimen in both axes, which is particularly important during observation with oil immersion and when producing photographic documentation.

The photographs in the gallery show the exact dimensions of the complete manipulator. The last photograph presents the entire microscope stage together with an arrow indicating the mounting location of this element, which makes it possible to identify the offered part unambiguously.

Description of this part for the microscope.

as a filter holder.

Mechanically, this lens in its housing is located in the microscope base, underneath the condenser. It is screwed into the base (the housing is threaded), while the light source (halogen or LED) is located directly below this collector.

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital"). However, the microscope body is identical - regardless of whether a halogen bulb or LED is used for illumination. Therefore, this collector lens is also the same in all these models.

This microscope part performs several functions:
- it collimates the light beam
- the built-in frosted glass diffuser provides uniform illumination, preventing discoloration in the area of the filament
- it also serves as the holder for round filters

The last photos in the gallery show the entire N-117M type microscope, with an arrow indicating which microscope part is being described and where it is located. This helps prevent any confusion when identifying the microscope part.

Description of this part for the microscope.

as a toothed rack) is located on the underside of the microscope stage and engages with the control handle with coaxial adjustment knobs.

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the microscope body and stage are identical, so this rack is also the same in both models.

The last photo in the gallery shows the entire microscope stage from an N-117M type microscope, with an arrow indicating which microscope part is being described and where it is located. This helps prevent any confusion when identifying the microscope part.

Description of this part for the microscope.

this mounting bracket is located at the end of the microscope stand arm. The microscope head is mounted to this bracket from above, while the objective nosepiece is located below it.

The entire mounting module for both the microscope head and the objective nosepiece consists of the following elements:
- the mounting socket into which the microscope head dovetail is inserted
- the clamping screw that secures the microscope head in this connection
- the Telan lens screwed into this mounting socket, which also holds the objective nosepiece

Here I am presenting the first of these elements - the microscope head connection (mounting socket / bracket).

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the microscope head mounting bracket is the same in all versions of this model.

The last photo in the gallery shows the stand of an N-117M type microscope, with an arrow indicating which microscope part is being described and where it is located. This helps prevent any confusion when identifying the microscope part.

Description of this part for the microscope.

Mechanically, it is located inside the microscope head mounting bracket and is screwed into the objective nosepiece from above, so it also serves as the mounting for the objective nosepiece.

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list - many sellers give the microscopes they sell their own names (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this microscope part was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the stand is shared by both models, so this Telan lens fits both models.

Microscopes based on the N-117M model have an objective nosepiece tilted inward, and in my opinion this is why a Telan lens is required even though this is a microscope using optics corrected for a 160 mm tube length.

Other names are sometimes used for the Telan lens installed in the microscope, for example:
- nosepiece lens
- intermediate lens
- tube lens (although this is an incorrect term, because a really "Tube lens" has a different function)

The last photo in the gallery shows the stand of an N-117M type microscope, with an arrow indicating which microscope part is being described and where it is located. This helps prevent any confusion when identifying the microscope part.

Description of this part for the microscope.

microscope consists of the following elements:
- the holder into which the condenser is inserted (the so-called condenser basket)
- the clamp located inside this holder, with an internal diameter of 37 mm
- the condenser mounting / clamping screw
- and the mechanism that moves the condenser, consisting of a control knob, a shaft with a pinion, and a rack

Here I am presenting the first three elements, i.e. without the control knob, without the shaft with pinion, and without the rack.

The N-117M / DN-117M microscope is a fairly good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list of names - many sellers give the microscopes they sell their own names without a model number (just like Delta Optical in Poland). The best way to check whether this microscope part fits your microscope is to compare the appearance of your microscope with the microscope from which this condenser holder was removed (https://www.microscopeparts.eu/microscope/optical-n-117m-388).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the stand is shared by both models, so this condenser holder fits both models.

When might this microscope part need to be replaced?
- if the microscope has a condenser holder in which the clamping screw is missing, bent, or broken off with a fragment remaining in the thread. This is a common fault
- if the clamp is missing from the inside of the condenser holder - this is a common problem because the clamp can be pulled out
- if the metal ring of the condenser holder has been bent as a result of an impact; in this case, the condenser simply cannot be inserted into the holder

The last photo in the gallery shows the stand of an N-117M type microscope, with an arrow indicating which microscope part is being described and where it is located. This helps prevent any confusion when identifying the microscope part.

Description of this part for the microscope.

Replacing the microscope head mounting screw in Nikon Eclipse microscopes may be necessary, among other reasons, when:
- this screw is missing from the microscope, which is common in used microscopes
- the screw in the microscope is bent or broken, which is common when the microscope has not been properly secured for transport
- the screw in the microscope is in poor condition, e.g. damaged because someone tried to force it loose with pliers

The last photos in the gallery show the body of a Nikon Eclipse E600 microscope, with an arrow indicating which element is being referred to and where it is located. This helps prevent mistakes when identifying the element.

Description of this part for the microscope.

microscopes.

This particular plunger pin was part of a screw removed from a Zeiss Standard WL microscope, but it will most likely fit most models of the Standard series, for example:
- Zeiss Standard 14 / 16 / 18
- Zeiss Standard WL / WL 89
- Zeiss Standard GFL
- Zeiss Standard Universal
- Zeiss Standard Photomicroscope
- Zeiss Ultraphot

Here you can see a complete screw of this type: https://www.microscopeparts.eu/part/99484 - this is the type of screw that contains this pin inside. In the last photos in the gallery, you can also see the complete arm of a Carl Zeiss Standard WL microscope, with an arrow indicating which element this is and where it is located in the microscope.

Note - over the years, Zeiss microscopes (or the same microscopes sold under the names Zeiss-Winkel or under the Opton brand), especially simpler models such as the Zeiss Standard Junior, may have used different screws for attaching microscope heads. They were not necessarily spring-loaded screws - sometimes ordinary threaded clamping screws were used.

Before deciding to repair the screw in your microscope, it is best to carefully compare its appearance and dimensions with the photos in the gallery or ask a question on the forum https://www.mikroskopie-forum.de/

Description of this part for the microscope.

Carl Zeiss Standard 16
- Carl Zeiss Standard 18
- Carl Zeiss Standard WL / WL 89
microscopes, a module is screwed to the end of the microscope arm. This module also serves as the head carrier and may have rails for mounting a removable nosepiece housing, or sometimes an integrated nosepiece.

Here I present and offer the Allen screw used to attach this particular module to the microscope arm.

In the last photos in the gallery (https://www.microscopeparts.eu/gallery/91033), you can see the microscope arm of a Zeiss Standard WL 89, with an arrow indicating which screw this is and where it is located in the microscope. This allows for unambiguous identification of this component.

An example of a module from a Zeiss Standard 14 microscope with an integrated nosepiece can be seen here: https://www.microscopeparts.eu/photo/99489-5 - this screw also fits this module.

Please note that Carl Zeiss Standard GFL microscopes use a different screw. This is immediately apparent because it is not an Allen screw - you can see it here: https://www.microscopeparts.eu/photo/99667-8

IMPORTANT: This is not the screw used to mount the microscope head to the stand (more precisely, to the head carrier). Here: https://www.microscopeparts.eu/gallery/99484 you can see a gallery of photos of the screw used to mount the head to the microscope. The screw presented here is NOT that screw.

Note - over the years, Zeiss microscopes (or the same microscopes sold under the names Zeiss-Winkel or under the Opton brand) may have used different screws to mount the head carrier to the stand arm. Before deciding to replace a screw in a microscope, it is best to carefully compare its appearance and dimensions with the photos in the gallery or ask a question on the forum https://mikroskopie-forum.at/forum/

Description of this part for the microscope.

3x
Model: Semiplan 6.3/0.16 160/-
Serial number: 039 562 (039562)
Color correction: Semi-Planachromat
Numerical aperture: 0.16
Tube length: 160 mm
Focal length: 45 mm
Cover glass: no
Immersion: no
Thread: RMS

This is one of the most commonly used microscope objectives for macro photography and focus stacking.

Important - this objective IS SUITABLE for taking images using the "direct-projection" technique, as it does not require plan-compensating optics.

It can be used with any microscope from any manufacturer. Of course, the microscope must be compatible, meaning it supports RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

E
Magnification: 40x
Numerical Aperture: (?)
Cover Glass: (?)
Thread: RMS
Tube Lens: (?)
Focal Lens: 45 mm
Immersion: (?)

I have very little technical information about this objective; I don't even know what the red letter "E" stands for. If you have any information that would help me add to the description, please E-mail me.

In 1950, Hensoldt DIAMI microscopes with a star-shaped nosepiece were already using objectives with a 45 mm parfocal length, but they still looked like the shorter, older versions. This is already a newer version of the objective, differing among other things in that it does not have the numerical aperture value engraved on it.

In a 1950 brochure, the manufacturer states that optional equipment for reflected-light EPI work was available for the Hensoldt DIAMI microscope. Therefore, it is possible that the red letter "E" on the objective indicates an EPI objective. However, this possibility is contradicted by the fact that the 1950 model, which was designed only for transmitted-light work, had a 100x objective that also had the letter "E" engraved on it.

Description of this part for the microscope.

pair"
Magnification: 2.5x (written in the old style as 2 1/2)
Housing: rough, i.e. the older version

Since the 1930s, Carl Zeiss Jena produced many models and variants of stereomicroscopes, and this objective will fit the vast majority of them, as they share the same mounting method.

Here (https://www.microscopeparts.eu/part/00654) you can see a 1.25x objective for the same microscope model.

Description of this part for the microscope.

E
Magnification: 10x
Numerical Aperture: (?)
Cover Glass: (?)
Thread: RMS
Tube Lens: (?)
Focal Lens: 45 mm
Immersion: (?)

I have very little technical information about this objective; I don't even know what the red letter "E" stands for. If you have any information that would help me add to the description, please E-mail me.

In 1950, Hensoldt DIAMI microscopes with a star-shaped nosepiece were already using objectives with a 45 mm parfocal length, but they still looked like the shorter, older versions. This is already a newer version of the objective, differing among other things in that it does not have the numerical aperture value engraved on it.

In a 1950 brochure, the manufacturer states that optional equipment for reflected-light EPI work was available for the Hensoldt DIAMI microscope. Therefore, it is possible that the red letter "E" on the objective indicates an EPI objective. However, this possibility is contradicted by the fact that the 1950 model, which was designed only for transmitted-light work, had a 100x objective that also had the letter "E" engraved on it.

Description of this part for the microscope.

good laboratory microscope manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the UK)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the UK)
- Apex N-117M (mainly in the UK)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list of names - many sellers give the microscopes they sell their own names without a model number (just like Delta Optical in Poland).

The N-117M model has a binocular or trinocular head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, for "Digital") - but the stand is shared by both models, so fits both models.

Description of this part for the microscope.

diaphragm) in the microscope base. It can be swung out, thereby removing the polarizing filter from the optical path. This means that it does not need to be removed when working in brightfield without polarization.

The catalog number of this component is: MBB75370.

Mechanically, this polarizer can be mounted on, among others, the following Nikon Eclipse series microscopes:
- Nikon Eclipse E400
- Nikon Eclipse E600
- Nikon Eclipse E800
- Nikon Eclipse 50i / 55i
- Nikon Eclipse 80i / 90i
- Nikon Eclipse Lv
- Nikon Eclipse Ci
- Nikon Eclipse Ni

Note - in commonly used terminology there is some inconsistency and foreign as well as incorrect names are often used:
- polaryzator
- polarisator
- polarizer
- polariser
- filtr polaryzacyjny
- filtr POL
- circular polariser
- CPL Filter
- POL filter
- polarisations Filter
- polarization Filter
- anaizator
- analisaor
- Analysator
- POL analizer
- polarization analyser

IMPORTANT: For polarized-light work, a rotating analyzer, an insert with a rotating analyzer, or an intermediate tube with a rotating analyzer is required to be used together with this Nikon C-SP polarizer.

Description of this part for the microscope.

2 microscopes with a reflected light illuminator.

Olympus BH2-NAN-2 analyzer slider:
Slider type: rotatable polarizing analyzer
Rotation: the analyzer rotates within a range of 0-45 degrees
Marking on the slider: Olympus BH2-NAN-2
Model in the manufacturer catalog: BH2NAN2
Dimensions: width 45 mm, thickness: 7.5 mm, overall length: 68.5 mm, length of the inserted part: 48.5 mm
Intended use: for the EPI reflected light illuminator

Olympus polarizer slider:
Slider type: rotatable polarizer
Rotation: the polarizer rotates within a range of 0-360 degrees
Marking on the slider: none
Model in the manufacturer catalog: unknown
Empty position: yes - the polarizer has two positions, one with the polarizing filter and the other empty
Dimensions: width 45 mm, thickness: 6 mm, overall length: 85 mm
Intended use: for the EPI reflected light illuminator
Notes: the absence of any marking on the slider suggests that it is not a pull-out slider, but is permanently mounted in the EPI reflected light illuminator - it can, however, be moved between the empty position and the polarizer position

If you want to use this slider in a different microscope - check the shape and the exact dimensions shown in the photos.

Please note - the commonly used terminology is slightly disordered, and foreign as well as incorrect names are often used. The most common mistake is that the analyzer is called a polarizer - and unfortunately this mistake is so frequent that it has to be taken into account. Here are examples of the names in use:
- polaryzator
- polarisator
- polarizer
- polariser
- filtr polaryzacyjny
- filtr POL
- circular polariser
- CPL Filter
- POL filter
- polarisations Filter
- polarization Filter
- analizator
- analisator
- Analysator
- POL analizer
- polarization analyser

Unfortunately, I do not know the model of the EPI reflected light illuminator these sliders fit. Fortunately, Mr Thomas Woitzik has photos of an Olympus BH2 BHS microscope with exactly this EPI equipment on the pages of his excellent online shop: https://www.mikroskop-online.de/mikroskope/verkauf/gebrauchte-mikroskope/auflichtmikroskope/olympus-bh2-mit-auflicht-hellfeld-auflichtpolarisation-photoausgang-und-durchlichtmoeglichkeit/

Description of this part for the microscope.

Zeiss Universal
- Zeiss Photomicroscope I
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS
- Zeiss Ultraphot

The module consists of the following elements:
- a metal push-pull rod with position markings (white, red and black stripes, as well as a blank/silver marking)
- a round knob screwed onto the end of this rod
- a mounting for attaching the rod to the prism housing
- a cover protecting and covering the internal mechanism

This component is susceptible to various types of damage, including:
- because the rod is quite long when pulled out (approx. 7 cm), it can easily become bent, especially during transport of the microscope. A bent rod can no longer smoothly switch the prisms in the optical path of the intermediate tube
- the Bakelite knob screwed onto this rod can easily chip or become unscrewed and lost
- any of these elements, including the protective cover, can be lost during microscope servicing

The last photo shows the complete intermediate tube, with an arrow indicating which element this is and where it is located. This allows for unambiguous identification of the service component presented here.

Description of this part for the microscope.

manufactured at the Chinese NYO factory and sold worldwide under various names. These microscopes are known and sold, among others, as:
- Delta Optical Genetic Pro (mainly in Poland)
- AmScope B340 / T340 (mainly in the USA and the rest of the world through Amazon)
- Labtron LEM-C10 / C11 / C12 (mainly in the United Kingdom)
- Sigeta MB-207 (mainly in Ukraine)
- Boeco Germany BM-117 (mainly in Germany)
- BestScope BS-2020 (mainly in the USA, shipped worldwide)
- Brunel N117M (mainly in the United Kingdom)
- Apex N-117M (mainly in the United Kingdom)
- Surgifield SM-DN-117M (mainly in Nigeria and West Africa)
- Eurotech DN-117M (mainly in Peru)
- Biocare DN-117M (mainly in Peru)
- Viresa N-117M (mainly in Mexico)
- Eurolab DN-117M
- Nexcope N-117M
- Novel N-117M

This is certainly not a complete list of names - many sellers give the microscopes they sell their own names without a model number, as is the case with Delta Optical in Poland.

This microscope base contains:
- a socket for connecting the power cord
- an ON / OFF switch
- a knob for adjusting the light intensity (brighter-darker)
- the necessary internal electronics
- an LED light source
- IMPORTANT - as can be seen in the photos, there is no light collector in the base

The N-117M model has a binocular or trinocular microscope head, while the DN-117M model has a built-in digital USB camera (hence the "D" at the beginning of the name, from "Digital") - however, the base is shared and fits both of these models.

Some older versions of microscopes based on the N-117M design have halogen illumination (rather than LED, as in the base presented here) - but the shape and the way the base is attached to the microscope arm are the same. A base with halogen illumination and a base with LED illumination can therefore be used interchangeably as a way of upgrading the microscope.

When might it be necessary to replace the microscope base?
- if the microscope base is of very poor quality (it may sometimes have been broken during transport)
- if you want to replace a base with halogen illumination with one with LED illumination
- if something inside the existing base has been damaged: the electronics, switch, or brightness adjustment knob

Description of this part for the microscope.

10
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes operating with transmitted light
- with inverted microscopes
- with microscopes equipped with reflected-light illumination
- for macro photography by directly attaching it to a camera

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

25
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes operating with transmitted light
- with inverted microscopes
- with microscopes equipped with reflected-light illumination
- for macro photography by directly attaching it to a camera

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

65
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

2 mm

Because this is important, I will write it again: this is a single eyepiece, not a pair of eyepieces.

This is a solution for people who:
- either have a pair of these eyepieces, but one of them needs to be replaced
- or have a microscope with a monocular head

For Will Wetzlar microscopes, eyepieces from practically any manufacturer can be used, provided that they are designed for a finite tube length system and have a mounting diameter of 23.2 mm. However, many users appreciate having original parts.

This eyepiece also works the other way around - it fits almost any microscope from any manufacturer that allows the use of eyepieces with a mounting diameter of 23.2 mm. Users of microscopes from many manufacturers are happy to choose German eyepieces because of their high quality. I have included some examples in the "compatibility" section, but this is definitely not a complete list.

Description of this part for the microscope.

2 mm

Because this is important, I will write it again: this is a single eyepiece, not a pair of eyepieces.

This is a solution for people who:
- either have a pair of these eyepieces, but one of them needs to be replaced
- or have a microscope with a monocular head

For Will Wetzlar microscopes, eyepieces from practically any manufacturer can be used, provided that they are designed for a finite tube length system and have a mounting diameter of 23.2 mm. However, many users appreciate having original parts.

This eyepiece also works the other way around - it fits almost any microscope from any manufacturer that allows the use of eyepieces with a mounting diameter of 23.2 mm. Users of microscopes from many manufacturers are happy to choose German eyepieces because of their high quality. I have included some examples in the "compatibility" section, but this is definitely not a complete list.

Description of this part for the microscope.

of the slide with the specimen on the microscope stage.

The simpler Will Wetzlar microscopes of the V100 and V200 series were sold with a square stage that had no integrated mechanical stage mechanism for precise movement of the specimen. Such a mechanism is a separate (and optional) part, screwed to the side of the stage - and it is exactly this accessory that is offered here.

Basic information:
Item: mechanical stage attachment for a microscope stage
Manufacturer: Will Wetzlar
Fits: microscopes of any make with a stage from 10 mm to 12 mm thick
Mounting: screwed to the side of the stage, on the left, with two screws

Once this mechanism is fitted, the coaxial knobs used to move the specimen are located on the handle on the left side of the stage.

Important note on compatibility:

Originally, attachments of this kind were used in the Will Wetzlar microscopes of the V100 and V200 series (that is, in the VM-V1xx, VB-V1xx, VM-V2xx and VB-V2xx models). I have personally fitted it to the following models as well:
- Will Wetzlar V255, V150
- Carl Zeiss Jena Eduval
- Carl Zeiss Jena Laboval-2
- Motic SFC100
- Olympus CH
- Olympus CH2

This XY mechanism also fits microscopes of other makes, provided the thickness of the stage is between 10 and 12 mm.

It is also worth remembering that microscopes made by Will Wetzlar were sold under the following names as well:
- Hund Wetzlar
- Dr. G. Schuchardt Göttingen
- Opt. Inst. G.K.E. Schröder
Microscopes carrying any of these names should therefore also be taken into account when considering the compatibility of this mechanical stage attachment.

The last photograph in the gallery shows a Will Wetzlar microscope of the V100 series, with an arrow indicating which part is meant and where it sits on the microscope. In addition, the video in the video gallery shows this attachment from various angles, together with the movement of its moving parts.

At magnifications above 400x, moving the slide with the specimen by hand becomes very difficult. This is precisely why mechanical stage attachments are used: to move the specimen very precisely at, for example, 600x or at 1000x with oil immersion.

Description of this part for the microscope.

10 160/-
Numerical aperture N.A.: 0.10
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Parfocal distance: 45 mm (so-called long objective)
Immersion: no (dry objective)

This objective can be used:
- on biological transmitted light microscopes
- on inverted microscopes
- on microscopes with a reflected light illuminator
- for macro photography, connected directly to a camera

This is the so-called black series of objectives, named after the black plastic objective barrel. They were used mainly in the Will Wetzlar microscopes of the V300 series, for example in the Wilozyt V365 model. This was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same black series appeared, for example, in the Leitz Wetzlar HM-LUX-3 microscopes.

It is worth noting that the Will Wetzlar microscopes of the V100 and V200 series were usually fitted with objectives of 37 mm parfocal distance - but newer objectives with a parfocal distance of 45 mm, such as those of the black series, can be used in them without any problems whatsoever.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives made by Will Wetzlar, although these often carried their own company name. It can therefore be said with a high degree of confidence that this objective will also fit the microscopes of those companies.

This objective fits practically any microscope of any make, provided it has an RMS thread and accepts objectives with TL=160 mm and parfocal distances of 33 / 37 and 45 mm. A few examples of such microscopes are listed in the "kompatybilność" section, but that list is not exhaustive.

Description of this part for the microscope.

Universal / Zeiss Photomicroscope class microscopes there is a rotating, turret-type "Optovar" magnification changer in the intermediate tube, above the objective nosepiece (not always - please note the remark on this further down in the description).

What I am offering here is the rotating lens wheel of this magnification changer together with the spring click-stop mechanism.

This item fits the magnification changer used in the following microscopes:
- Zeiss Universal
- Zeiss Photomicroscope I
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS
- Zeiss Ultraphot

Some models of the Zeiss Universal microscope have no magnification changer in the intermediate tube.

The magnification changer turret offered here has 4 positions:
- PH - this is an empty position, because the Bertrand lens is located higher up in the intermediate tube, in a horizontally sliding tube, together with the prisms that split the light beam towards the photo port
- 1,25x - this is the lens of the basic magnification for observation
- 1,6x - additional magnification lens
- 2x - additional magnification lens

In addition, this item has a sheet-metal detent (the so-called click-stop) that locks the lens wheel in the exact position.

VERY IMPORTANT - this is not a complete "Optovar" magnification changer. It is a service part - a component for repairing a magnification changer.

This item is intended for those who already have such a magnification changer in their microscope, but it needs replacement or repair, for example because its lens (or one of its lenses) has come apart (delamination) or has been damaged by mould. In that case the item offered here can be used to replace the whole lens wheel, or a particular lens can be taken out of it.

Over the years the Carl Zeiss Photomicroscope series microscopes have acquired various names by which users commonly refer to them. These include, among others:
- Zeiss Photomikroskop
- PM, e.g. Zeiss PM II or Zeiss PM III
- Zeiss Phomi, e.g. Zeiss Phomi II
It should also be mentioned that the Zeiss Photomicroscope microscopes were sold under the Opton brand as well.

The last photo in the gallery shows the photo intermediate tube removed from a Carl Zeiss Photomicroscope III microscope, with an arrow indicating which item is meant and where this lens turret ring is located in that tube.
In addition, the film available in the video gallery shows this lens turret from various angles and the movement of its moving parts.