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.

170 mm
Focal length: 37 mm
Cover glass: yes, 0.17 mm
Immersion: no
Thread: RMS

This objective was removed from a Leitz Dialux microscope, but it is compatible with most Leitz Wetzlar microscopes manufactured approximately before 1980 (SM, SM-Lux, Dialux, Ortholux, Orthoplan, etc.).

Some useful information about Leitz Wetzlar objectives with TL=170 mm and FL=37 mm:
- most Leitz microscopes manufactured approximately before 1980 support both 160 mm and 170 mm tube length objectives
- many Leitz microscopes support both 37 mm and 45 mm parfocal length objectives
- by adding an RMS-8mm adapter, such an objective obtains a parfocal length of 45 mm. Leitz manufactured such adapters under the name "Plezzy" - however, many users make their own versions from metal or by using 3D printers

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.

35 160/0.17
Manufacturer part number: 46 05 10-9906 (alternative notation: 460510 - 9906)
Color correction: Planachromat
Numerical aperture N.A.: 0.35
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0.17 mm thickness
Immersion: no (dry objective)
Thread: RMS

Description of this part for the microscope.

65 160/0.17
Manufacturer part number: 46 07 10-9904 (alternative notation: 460710 - 9904)
Color correction: Planachromat
Numerical aperture N.A.: 0.65
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0.17 mm thickness
Immersion: no (dry objective)
Thread: RMS

Description of this part for the microscope.

guide rails of the condenser holder. It is not a condenser mounted in a circular clamp, therefore it does not have a "diameter" parameter describing it.

This condenser was removed from a Leitz Wetzlar Dialux microscope (the first black model), but to the best of my knowledge it also fits other microscopes from the same era: Leitz Ortholux and Leitz Orthoplan. Important - it does not fit Leitz SM microscopes.

The upper flip-out lens provides the best image quality when working with objectives of high numerical aperture (N.A.). When the upper lens is flipped out, optimal illumination is achieved when using objectives with magnifications below 10x.

Description of this part for the microscope.

microscope. The head contains a built-in Bertrand lens that can be moved out of the optical path. This allows both standard orthoscopic and conoscopic observations to be performed.

Basic parameters:
Manufacturer: Leitz Wetzlar
Compatible eyepiece diameter: 30 mm
Compatible eyepiece type: both standard eyepieces and polarizing eyepieces with a positioning key
Bertrand lens: yes, with an adjustment knob
Compatible with: Leitz Wetzlar SM-Pol microscope

Important: the non-polarizing versions of the Leitz Wetzlar SM microscope (and the SM-D) use a different head mounting system, therefore this head is not compatible with those models.

In the last photograph, an arrow indicates exactly which component is being offered and where it is located within the microscope, allowing this part to be identified unambiguously. In addition, the attached video shows, among other things, the mechanism used to move the Bertrand lens.

Description of this part for the microscope.

bright field
- dark field
- oblique illumination
- phase contrast

It can work with phase objectives of different magnifications and from different manufacturers (it is sufficient to manually adjust the ring diameter).

Basic parameters:
Manufacturer: Leitz Wetzlar
Model: Heine condenser
Mounting diameter: 39.5 mm
Numerical aperture N.A.: variable, up to 1.4

This Heine condenser was designed for microscopes with a condenser holder in the form of a circular clamp (e.g. Leitz SM microscopes). It is not a condenser that slides into mounting rails (as found, for example, in the Leitz Orthoplan microscope).

This condenser fits microscopes from many manufacturers (e.g. PZO, Steindorff Berlin, Zeiss, Carl Zeiss Jena, Leitz, Kremp Wetzlar, Will Wetzlar and many others) equipped with a 39.5 mm condenser holder.

Description of this part for the microscope.

at the end of the microscope arm and performs several functions:
- a microscope head is mounted on its top side (monocular, binocular or trinocular photographic head)
- inside there is a slide containing a polarizing analyzer that can be moved out of the optical path using a switch
- a polarizing objective nosepiece is mounted to the underside of this component

In the last photo, an arrow indicates which component is being offered and where it is located in the microscope, making it possible to identify this part unambiguously. In addition, the attached video shows the mechanism responsible for moving the polarization analyzer.

Description of this part for the microscope.

type: RMS
Centering: yes, each objective can be centered independently (a special key / tool is required)
Mounting method: the nosepiece is attached to the microscope body using screws

In the last photo, an arrow indicates which element is being offered and where it is located in the microscope, allowing this part to be identified unambiguously. Additionally, the attached video shows the movement mechanism of this nosepiece.

Description of this part for the microscope.

transmitted light work
Mounting method: this stage is attached to the microscope body using screws
Centering: in the Leitz Wetzlar SM-Pol microscope, this stage is centered using two screws

Many users of the Leitz Wetzlar SM microscope (or SM-D) ask the following question:
- Can I install the polarizing stage from the Leitz SM-Pol microscope into a Leitz SM microscope and thus convert it into a polarizing microscope?
- The answer is: No. The centering mechanism of this polarizing stage means that this stage is not compatible with the non-polarizing Leitz SM microscope. Moreover, the Leitz SM microscope differs from the polarizing SM-Pol model not only in the stage.

In the last photo, an arrow indicates which element is being offered and where it is located in the microscope, allowing this part to be identified unambiguously. Additionally, the attached video shows the movement mechanism of this stage.

Description of this part for the microscope.

of 39.5 mm for mounting the condenser
- a condenser height adjustment knob
- a rack gear

This component fits various versions of the Leitz Wetzlar SM microscope:
- Leitz SM
- Leitz SM-D
- Leitz SM-Pol

Description of this part for the microscope.

Wetzlar
Model: 160/0,17 EF 100/1.25 OEL PHACO 3
Magnification: 100x
Correction: semi-plan achromat
Numerical aperture: 1.25
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0.17 mm
Immersion: yes, oil
Thread: RMS
Specimen protection: yes - spring-loaded
Info: PHACO 3 = phase contrast

Some important information about this objective:
- the designation "EF" means "Extended Field" - this is a semi-plan achromatic objective with an 18 mm field of view, which should be taken into account when selecting suitable eyepieces
- the semi-plan achromatic correction is "almost flat" - it is no longer an achromat, but not yet a plan achromat
- this objective can be used in brightfield, but phase contrast operation requires a compatible phase contrast condenser or a slide (slider) with a phase ring diaphragm
- the designation PHACO 3 means that for phase contrast operation a phase contrast condenser set to ring "3" should be used (the equivalent setting used by Zeiss is called "Ph3")
- this objective can be used with microscopes designed for objectives with a 170 mm tube length, but in such a case the optical path must be extended by 10 mm - most commonly by pulling the eyepieces out of the tubes by 10 mm

This objective can be used with any microscope from any manufacturer together with a compatible phase contrast condenser. Naturally, the microscope must be compatible, i.e. it must support RMS objectives, TL=160 mm and FL=45 mm - or have adapters that make such adaptation possible (for example thread adapters).

Description of this part for the microscope.

from a Leitz Dialux microscope. In the last photo in the gallery you can see the microscope stage from which it was removed. However, the manufacturer fitted the same type of mechanical XY microscope stage to many other Leitz microscope models, so this specimen holder is also compatible with models other than the Leitz Dialux.

When determining compatibility and whether this specimen holder can be mounted on a particular mechanical XY microscope stage, the following dimensions are critical:
- distance between the two side locating pins: 81 mm measured from the outer edge of one pin to the outer edge of the other pin
- locating pin diameter: 3 mm each
- therefore, the centre-to-centre distance between the locating pins is 78 mm
- diameter of the central mounting screw: 4 mm
- position of the mounting screw: centred between the two locating pins

If the spacing of the locating pins matches, this specimen holder can also be mounted on microscope stages made by other manufacturers.

Leitz Wetzlar produced specimen holders with fixed stage clips as well as versions with a spring-loaded stage clip. Here I am showing and offering the spring-loaded version.

On the used market and in technical documentation, this microscope part is described using a variety of names. Common terms include:
- specimen holder
- microscope stage specimen holder
- mechanical stage specimen holder
- slide holder
- microscope slide holder
- microscope slide clamp
- spring-loaded specimen holder
- spring-loaded slide holder
- spring-loaded stage clip
- specimen clamp
- specimen carrier
- mechanical stage carrier
- XY stage specimen holder
- specimen holder for mechanical XY microscope stage
- stage holder
- stage clip assembly

The photographs in the gallery show the exact dimensions of the microscope part offered here. In addition, the last photograph includes an arrow indicating exactly which microscope part is being described and where it is mounted on the mechanical XY microscope stage, making identification straightforward. The accompanying video demonstrates the operation of the spring-loaded stage clip.

Description of this part for the microscope.

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.

This particular manipulator was removed from a Leitz Dialux microscope. The last photograph in the gallery shows the entire microscope stage from which it was dismounted. The manufacturer also used the same or very similar stages in many other Leitz Wetzlar microscope models, which is why the manipulator may also be compatible with other models from this company.

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.

In many cases it is not the entire manipulator that is damaged, but only one of its components. Most often these are the knobs, the drive shafts, the coaxial sleeves or the fixing elements. For this reason, this database also contains all the most important constituent parts of this (and other) manipulators, offered separately as service elements.

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.

not intended for so-called "thick" objectives
Thread in the cap: no, the cap of this objective case does not contain a thread for attaching an RMS objective

This objective case can be used to store so-called "short" objectives (DIN 33 mm), longer objectives (DIN 37 mm), and long objectives (DIN 45 mm), provided they are not the so-called "thick" type.

Various names are used on the secondary market for a microscope objective case, including:
- objective case
- microscope objective case
- objective container
- microscope objective container
- objective storage case
- objective storage container
- objective box
- objective storage box
- protective objective case
- objective lens case
- objective lens container
- dust protection case
- transport case for microscope objectives
- microscope objective holder case
- storage canister for microscope objectives

Each case has the Leitz Wetzlar logo on its cap.

Although this case is of greatest interest to users and collectors of objectives made by the manufacturer Leitz Wetzlar, it can of course be used to store objectives from any manufacturer.

Description of this part for the microscope.

ameters:
Manufacturer: Lomo
Model: PLAN 25x0.50 P
Original designation: ЛОМО ПЛАН 25х0,50 П
Magnification: 25x
Numerical aperture N.A.: 0.50
Tube length: 160 mm
Cover glass: yes, 0.17 mm thickness
Immersion oil: no - this is a dry objective
Focal length: 45 mm
Thread type: RMS
Additional designation: P (Cyrillic: П) indicates that this objective is designed for use with polarized light
Special features: built-in iris diaphragm
Year of manufacture: 1976

This objective has a standard RMS thread and TL=160 mm, which means it can be used with the vast majority of microscopes from virtually any manufacturer, including Olympus, Zeiss, Nikon, PZO, Carl Zeiss Jena, Reichert, Wild and many others.

The built-in iris diaphragm allows, among other things, precise centering of the objective, because in a polarizing microscope the following diaphragms may operate simultaneously:
- field diaphragm in the illuminator
- aperture diaphragm (or two aperture diaphragms) in the condenser
- iris diaphragm in the microscope objective
- iris diaphragm in the eyepiece head
and accurate centering of all of them relative to each other is very important in polarized-light observations.

Objectives marked "P" / "Pol" feature a special construction in which the lenses are mounted and cemented in a way that prevents mechanical stress. They can be used both for conventional brightfield microscopy and for observations in polarized light.

Description of this part for the microscope.

of 45 mm.
- This version of the base can be used with transmitted light, although the light source is not included.
- A microscope stage can be mounted on this base - the required mounting holes are provided.
- The stand is equipped with a worm-thread drive.

This heavy and stable stand is often used for applications completely unrelated to hardness testers or microscopes, for example for mounting drill presses, lasers, or stable macro photography setups.

Description of this part for the microscope.

Leica DM LD controller:
Model: Leica DMLD (also written as: DM LD)
Leica catalog number: 301-385.160
Legacy Leitz part number: 541065
Production date: 01/98
Connectors: female DB15, male RS232C, female foot-switch connector, mains power inlet, power switch
Power supply: U100-115/230V 50-60Hz, P max 25W
Form factor: external metal enclosure

"Leica DMLD" is an analogue photomicrography system. A standard 35 mm camera is connected to shutter unit 093-050.001-000 (legacy part number 541045). Among its connectors is a male DB15 connector labelled "control panel or power supply". The shutter operates together with the Leica DMLD control panel P/N 301-385.001 (legacy part number 541044).

The entire system is very similar to the earlier MPS52 system (Leitz Leica MPS 52 / Wild Leitz MPS 52).

Based on the following observations:
- the controller offered here is also designated "Leica DMLD"
- part number 301-385.160 belongs to the same numbering group as control panel 301-385.001 (group 301-385.xxx)
- the legacy number 541065 belongs to the same 5410xx numbering group as the shutter controller and the control panel

I believe - although I do not have access to documentation that could confirm this - that this unit is also part of the Leica DMLD analogue photomicrography system, most likely serving as a power supply and shutter control module with provision for connecting a foot switch.

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.

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.

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.

25 160/0.17
Numerical aperture N.A.: 1.25
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Parfocal distance: 45 mm (so-called long barrel)
Immersion: yes, oil immersion

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.

17 100/1.25 Oel
Catalogue number in the manufacturer's catalogue: 519756
Numerical aperture N.A.: 1.25
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Parfocal length: 45 mm (so-called long barrel objective)
Immersion: yes, oil

This is the so-called "black series" of objectives, named after the black plastic housing of the objective. They were used mainly in Leitz Wetzlar HM-LUX-3 microscopes (and in the model signed Leica HM-LUX 3). This was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same kind of "black series" could also be found in Will Wetzlar V300 / V355 / V365 or Nikon Alphaphot YS2 microscopes.

This objective fits practically any microscope from any manufacturer, provided it has an RMS thread and accepts objectives with a tube length of 160 mm and a parfocal length of 33 / 37 or 45 mm. A few such microscopes are listed as examples in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

25
Catalogue number in the manufacturer's catalogue: 519754
Numerical aperture N.A.: 0.25
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Parfocal length: 45 mm (so-called long barrel objective)
Immersion: no (dry objective)

This is the so-called "black series" of objectives, named after the black plastic housing of the objective. They were used mainly in Leitz Wetzlar HM-LUX-3 microscopes (and in the model signed Leica HM-LUX 3). This was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same kind of "black series" could also be found in Will Wetzlar V300 / V355 / V365 or Nikon Alphaphot YS2 microscopes.

From 1990 onwards, the logo (and the name) "Leica" began to appear on microscopes that had until then been signed "Leitz". This was also visible on the HM-LUX 3 microscope - and this microscope can be found both with the "Leitz" logo and with "Leica". The same 10x objective that I present here with the name "Leitz Wetzlar" and manufacturer number 519754 also exists with the "Leica" marking - and NOTE - it carries exactly the same number, that is "519754".

This objective fits practically any microscope from any manufacturer, provided it has an RMS thread and accepts objectives with a tube length of 160 mm and a parfocal length of 33 / 37 or 45 mm. A few such microscopes are listed as examples in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

Göttingen
Magnification: 50x
Optical correction: achromat
Numerical aperture N.A.: 0.82
Parfocal length: 37 mm
Tube length: 170 mm
Cover glass: yes, 0.17 mm thick
Immersion: no - this is a dry objective
Thread: RMS

This is a so-called "short barrel" objective with a parfocal length of 37 mm. It is very often mounted on an 8 mm extension, which allows it to be used in microscopes that require 45 mm (long barrel) objectives. Professional adapters with protective optics, metal adapters and popular DIY 3D-printed adapters all work well for this.

The company "Dr. G. Schuchardt Göttingen" did not manufacture microscopes and does not manufacture them today. In the past it mainly sold microscopes made by Hertel & Reuss and Will Wetzlar under its own brand, today its products are imported from China.

This objective fits virtually any microscope from any manufacturer, as long as it has an RMS thread and accepts objectives for TL = 170 mm with a parfocal length of 33 or 37 mm (or 45 mm when a suitable adapter is used). Several example microscopes are listed in the "Compatibility" section, but the list is not complete.

Description of this part for the microscope.

Göttingen
Magnification: 5x
Optical correction: achromat
Numerical aperture N.A.: 0.10
Parfocal length: 37 mm
Tube length: 170 mm
Cover glass: not critical - objectives with such low magnification work both with and without a cover glass
Immersion: no - this is a dry objective
Thread: RMS

This is a so-called "short barrel" objective with a parfocal length of 37 mm. It is very often mounted on an 8 mm extension, which allows it to be used in microscopes that require 45 mm (long barrel) objectives. Professional adapters with protective optics, metal adapters and popular DIY 3D-printed adapters all work well for this.

The company "Dr. G. Schuchardt Göttingen" did not manufacture microscopes and does not manufacture them today. In the past it mainly sold microscopes made by Hertel & Reuss and Will Wetzlar under its own brand, today its products are imported from China.

This objective fits virtually any microscope from any manufacturer, as long as it has an RMS thread and accepts objectives for TL = 170 mm with a parfocal length of 33 or 37 mm (or 45 mm when a suitable adapter is used). Several example microscopes are listed in the "Compatibility" section, but the list is not complete.

Description of this part for the microscope.

for inverted and upright biological microscopes, made in Japan.

Basic objective parameters:
Manufacturer: Nikon, Japan
Model: Ph3 40 DL 0.55 LWD 160/0-2
Magnification: 40x
Numerical aperture (N.A.): 0.55
Optical correction: achromat
Phase contrast: Ph3 DL - Ph3 indicates the size of the phase ring (requires a matching Ph3 annulus in the condenser), DL (Dark Low) means dark, i.e. positive phase contrast - the object appears darker than the background
Working distance (WD): ~2.1 - 2.5 mm - LWD (Long Working Distance)
Correction collar: compensates for cover glass or vessel bottom thickness in the range 0 - 2.0 mm
Cover glass: the objective can be used without a cover glass, with a standard cover glass approx. 0.17 mm thick, and also with specimens observed through the bottom of a Petri dish up to 2.0 mm thick
Immersion: no (dry objective)
Tube length: 160 mm
Parfocal length: 45 mm
Thread: RMS
Optics: CF (Nikon CF-160) - requires no compensating eyepiece and allows photography by direct projection

This objective is suitable for:
- inverted microscopes - observation through the bottom of a Petri dish or cell culture flask
- upright biological microscopes - observation of specimens with or without a cover glass

Phase contrast work requires a compatible phase contrast condenser or a slider with a phase contrast annulus.

Commonly used, inexpensive cover glasses are 0.17 mm thick mainly in theory. Even the standard for class #1.5 allows a range of 0.16 - 0.19 mm, and in cheap Chinese cover glasses you will find in practice pieces from approx. 0.13 to 0.25 mm, often not matching the thickness stated on the box. Only #1.5H (high precision) cover glasses have a guaranteed thickness of 0.170 mm with a tolerance of +/- 0.005 mm. Variation in cover glass thickness clearly degrades image contrast and resolution (spherical aberration). The correction collar fitted to the objective offered here lets you adjust the optics to the combined thickness of the cover glass and the medium layer beneath it. This compensates for most of the variation found in practice.

In addition, the correction collar of this objective can be set to "0" for work without a cover glass, or to large values (up to 2.0 mm) to adapt the optics to observation through a microscope slide (0.8 - 1.2 mm), a glass Petri dish (usually 1.5 - 2.0 mm - thicker dishes are outside the collar range) or a plastic Petri dish (usually approx. 1 mm, in the range 0.8 - 1.2 mm).

This objective fits practically any microscope from any manufacturer, provided it has an RMS thread and uses objectives for 160 mm tube length with a parfocal length of 33, 37 or 45 mm. Some example microscopes are listed in the "compatibility" section, but the list is not complete.

Description of this part for the microscope.

achromatic
Numerical aperture N.A.: 0.30
Tube length: 170 mm
Parfocal length: 37 mm
Cover glass: yes, 0.17 mm thick
Immersion: no (dry objective)
Thread: RMS

The Steindorff 10x objective is also suitable for macro photography, as it does not require a cover glass and allows direct projection onto the camera sensor without intermediate optics.

This is a so-called "short objective", with a parfocal length of 37 mm. It is particularly common to mount this objective on an 8 mm extension, which makes it possible to use the objective in microscopes requiring objectives with a parfocal length of 45 mm. Both professional adapters with protective optics and metal adapters, as well as popular DIY solutions made with a 3D printer, work well for this purpose.

Like a large proportion of microscope objectives manufactured in Germany in the 1960s and 1970s, this objective has a parfocal length of 37 mm and a tube length of 170 mm. This means that it is often used as a replacement objective for other German microscopes, such as:
- Leitz Wetzlar
- Kremp Wetzlar
- Hertel & Reuss
- Steinmar Berlin
- CBS Beck Kassel
- ROW Rathenow

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 170 mm and with a parfocal length of 33 / 37 mm (or 45 mm when using a suitable adapter). 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.

the manufacturer's 1967 catalog: 519 237 (alternative notation: 519237)
Numerical aperture N.A.: 0.40
Tube length: 170 mm
Parfocal length: 37 mm
Working distance: 3.4 mm
Cover glass: either - the objective works both without and with a cover glass
Immersion: no (dry objective)
Thread: RMS

Because it works without a cover glass and has a high numerical aperture N.A., this objective can be attractive for macro photographers. It allows projection directly onto the camera sensor - without any intermediate optics.

This objective was removed from a Leitz SM microscope, but it fits most Leitz Wetzlar microscopes made before roughly 1980 (SM, SM-D, SM-Lux, Dialux, Ortholux, Orthoplan, etc.).

Some useful information about Leitz Wetzlar objectives with TL=170 mm and 37 mm parfocal length:
- most Leitz microscopes made before roughly 1980 accept objectives for both 160 mm and 170 mm tube length
- many Leitz microscopes accept objectives with both 37 mm and 45 mm parfocal length
- with an 8 mm RMS extension adapter, such an objective gets a parfocal length of 45 mm. Leitz made such adapters under the name "Plezy" - but many users make their own, from metal or on 3D printers

Like a large share of microscope objectives made in Germany in the 1960s and 1970s, this objective has a 37 mm parfocal length and a 170 mm tube length. For this reason it is often used as a replacement objective for other German microscopes, e.g.:
- Steindorff Berlin
- Kremp Wetzlar
- Hertel & Reuss
- Steinmar Berlin
- CBS Beck Kassel
- ROW Rathenow

This objective fits practically any microscope from any manufacturer, as long as it has an RMS thread and accepts objectives with TL=170 mm and a parfocal length of 33 / 37 mm (or 45 mm with a suitable adapter). Some examples of such microscopes are listed in the "compatibility" section, but this list is not complete.

Description of this part for the microscope.

of view number: 12
Mounting diameter: 23.2 mm
Designation: PK = plan compensating - recommended for work with planachromatic objectives, but they also work without any trouble with achromats or apochromats

Because of their very high quality they are often used on microscopes from other manufacturers as well, especially when Carl Zeiss Jena Planachromat objectives are mounted in them. The "compatibility" section lists a long series of microscopes these eyepieces fit - but that list is definitely not complete.

Important: these eyepieces work both on microscopes with a finite tube length (160 mm, for example) and on microscopes with infinity optics. That means you can use them on the Carl Zeiss Jena Amplival microscope just as well as on the Carl Zeiss Jena NU-2 microscope.

A note - eyepieces with such a strong magnification are in my opinion better suited to a quick look than to permanent work. I write "in my opinion" on purpose, because this comes from using them and not from the manufacturer's description.
A 16x eyepiece magnification should be treated as a zoom that brings out no additional detail (the resolution is not increased). This matters for example with heads that have their own extra magnification (such as Carl Zeiss Jena heads with a built-in 1.5x or 1.6x factor) - working with a 100x oil immersion objective you then theoretically get 100*1.5*16 = 2400x, while physics does not allow light from the visible range to be usefully magnified for the human eye beyond roughly 1250x - so this is what is called empty magnification.

Description of this part for the microscope.

5x
Field of view number: 16
Mounting diameter: 23.2 mm
Designation: PK = plan compensating - recommended for work with planachromatic objectives, but they also work without any trouble with achromats or apochromats

Because of their very high quality they are often used on microscopes from other manufacturers as well, especially when Carl Zeiss Jena Planachromat objectives are mounted in them. The "compatibility" section lists a long series of microscopes these eyepieces fit - but that list is definitely not complete.

Important: these eyepieces work both on microscopes with a finite tube length (160 mm, for example) and on microscopes with infinity optics. That means you can use them on the Carl Zeiss Jena Amplival microscope just as well as on the Carl Zeiss Jena NU-2 microscope.

Description of this part for the microscope.

Gleitfett grades differ in their parameters.

Gleitfett I E10 and Gleitfett II E75 were supplied with the Carl Zeiss Jena micromanipulator.
The Gleitfett III E410 offered here was supplied with the Carl Zeiss Jena Neophot-21 microscope.

This MAY suggest (although I have no proof in the form of manufacturer documentation) that the lower numbers (I and II) and the lower values of the "E" parameter (E10 and E75) were intended for finer mechanisms - and may therefore have a lower viscosity, for example. The III E410 grease, with its high "E" value, was supplied with a heavy microscope built around massive mechanics - so it may well be thicker.

This grease can of course be used on microscopes from other manufacturers as well - a few are listed in the "compatibility" section, but that is by no means a complete list.

Description of this part for the microscope.

4x
Kind: projection eyepiece for photomicrography
Intended for: microscopes corrected for objectives with TL = 170 mm
Mounting diameter: 23.2 mm

Projection eyepieces are special microscope eyepieces used to project the microscopic image onto the sensor of a camera. Many microscope photo tubes and trinocular heads have a seat for a projection eyepiece.

Leitz projection eyepieces of this magnification carry several different markings. You will find "Proj.-Ok. H4x", "Proj.-Ok. P4X" and - as on the item offered here - simply "Proj. 4x". The letter H stands for the Huygens design. Leitz also made projection eyepieces of other magnifications, 2.5x among them, so the 4x version is not the only one in this family.

The eyepiece is intended for microscopes with a mechanical tube length of 170 mm. The older Leitz stands are corrected this way, Orthoplan, Ortholux, SM and SM-D among others. Later microscopes of this brand already work with a 160 mm tube. In Leitz optics of this generation part of the chromatic aberration correction is deliberately moved from the objective to the eyepiece, so matching an eyepiece to an objective is not merely a mechanical question here.

Despite its name, this eyepiece behaves differently from a typical projection eyepiece. It does not form a real image at a fixed distance, but projects the image to infinity - exactly like an ordinary viewing eyepiece. This makes it excellent for the afocal method, that is, photographing with a camera that keeps its own lens placed above the eyepiece. Leitz itself built its photographic adapters on precisely this method.

Leitz "Proj." eyepieces also found use outside microscopy. Eyepieces of this family were part of the microprojection attachments for the Leitz Prado and Pradovit projectors, which threw the image of a specimen onto a screen for a whole lecture room. If you are completing such an attachment, this is exactly the part.

Use in a microscope with a 160 mm tube length remains a matter of your own DIY modification. Mechanically the eyepiece fits any 23.2 mm seat, but the intermediate image is then formed in a different place, so focus and image scale will come out differently from what the manufacturer intended. There is, however, a route that gives a beautiful combination: into a microscope of another manufacturer you fit a Leitz Wetzlar objective computed for 170 mm, and this eyepiece above it. The optical path is then entirely Leitz - objective and eyepiece work as they were designed to, and only the stand remains foreign, a PZO or a Carl Zeiss Jena one for instance.

The "compatibility" section lists the microscope models this eyepiece can be used with, but that list is of course not complete. This projection eyepiece can be used with any microscope of any manufacturer, as long as it has a tube or another seat for an eyepiece of 23.2 mm diameter - subject to the difference between 160 and 170 mm tube length (I write about this above).

Description of this part for the microscope.

100x
Colour correction: achromatic
Model: E. 100 1.25 oil 160/0.17
Numerical aperture N.A.: 1.25
Cover glass: yes, 0.17 mm thick
Thread: RMS
Tube length: 160 mm
Parfocal length: 45 mm (long barrel objective)
Immersion: yes, oil
Operating mode: objectives marked "E." are already CF objectives (CFN to be precise) and need no additional correction

This objective needs no additional correction from a tube lens or from the eyepieces. That makes it possible to fit it to microscopes of other makes, and in photomicrography it works in direct projection mode (it throws the image straight onto the camera sensor, with no relay optics needed).

This is the so-called black series of objectives, named after the black plastic barrel. They were used mainly in the Nikon Alphaphot YS2 microscope. That was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same black series appeared for instance in the Leitz / Leica HM-LUX 3 microscope or in the Will Wetzlar V300 / V355 / V365 microscopes.

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

Description of this part for the microscope.

correction: achromatic
Model: E 40 0.65 160/0.17
Numerical aperture N.A.: 0.65
Cover glass: yes, 0.17 mm thick
Thread: RMS
Tube length: 160 mm
Parfocal length: 45 mm (long barrel objective)
Immersion: no
Operating mode: objectives marked "E." are already CF objectives (CFN to be precise) and need no additional correction

This objective needs no additional correction from a tube lens or from the eyepieces. That makes it possible to fit it to microscopes of other makes, and in photomicrography it works in direct projection mode (it throws the image straight onto the camera sensor, with no relay optics needed).

This is the so-called black series of objectives, named after the black plastic barrel. They were used mainly in the Nikon Alphaphot YS2 microscope. That was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same black series appeared for instance in the Leitz / Leica HM-LUX 3 microscope or in the Will Wetzlar V300 / V355 / V365 microscopes.

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

Description of this part for the microscope.

objective:
Manufacturer: Zeiss West Germany
Engraving on the objective: Planapo 63/1,4 Oel 160/-
Manufacturer catalogue number: 46 18 40 - 9901 (also written as 461840-9901)
Magnification: 63x
Numerical aperture (N.A.): 1.4
Optical correction: plan-apochromatic
Immersion: yes, oil
Coverslip: according to the engraving on the barrel of this objective, it can be used both without a coverslip and with a standard coverslip of 0.17 mm thickness
Tube length: 160 mm
Parfocal distance: 45 mm
Thread: RMS
Specimen protection: yes, the objective has a spring-loaded mechanism preventing the slide with the specimen from being broken
Phase contrast: no - the objective has no phase rings inside
DIC: prisms allowing work in DIC mode are available on the market for this objective (sold separately)

This objective fits practically any microscope of any manufacturer, provided it has an RMS thread and accepts objectives for a 160 mm tube length with a parfocal distance of 33, 37 or 45 mm. A few such microscopes are listed as examples in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

10x
Mounting diameter: 23.2 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.

Microscope users have several names for eyepieces of this type with a large field of view. Among others:
- wide field eyepiece
- widefield ocular
- WF eyepiece
- wide angle eyepiece
- large field of view eyepiece

Description of this part for the microscope.

catalogue number: 46 78 36 (also written as 467836)
Colour: blue matt
Diameter: 32 mm
Material: glass

This is a filter that combines the functions of a blue filter and a ground glass diffuser:
- the blue filter is used to convert the yellow, warm light of the bulb into light closer to white light
- the matt filter (called a diffuser or ground glass) is used to even out the light across the whole area of the specimen and to remove the visible filament of the bulb

This does, however, have one consequence: without a visible filament it is not possible to work with illumination set up according to the Koehler method - and Zeiss mentions this in the leaflet supplied with the filter.

Very often only one or two microscope filters can be fitted in a microscope, for example one on the illuminator and the second in the holder below the condenser. The fact that the glass filter offered here is a 2-in-1 solution makes it possible to save the possible second slot for another filter.

The diameter of 32 mm is a standard with many manufacturers, which means this filter can be used with microscopes of numerous brands. The "compatibility" section lists over a dozen such microscopes, but it is not a complete list.

Description of this part for the microscope.

binocular head P/N 512582 - but tubes with exactly the same dimensions and the same mounting method are also used in other models of binocular and trinocular heads.

Two such tubes are fitted in binocular and trinocular heads - they are universal, there is no difference between the right and the left one.

The last photos in the gallery show how these tubes are screwed to the front plate of the head. The mounting screws are included with the tube offered here.

This component is often dented, and then the eyepiece can no longer be inserted. Slight deformations can easily be bent back, or the tube can be reamed out from the inside - with more serious deformations this is unfortunately not so easy. In that case, instead of replacing the whole head, it is enough to replace the eyepiece tube alone.

Description of this part for the microscope.

- but exactly the same prisms are also used in other models of binocular and trinocular heads.

It is neither the right nor the left eyepiece prism. It is the central prism that splits the beam towards the right and the left eye.

The last photo in the gallery shows a disassembled Leitz Wetzlar 512582 binocular head, with an arrow pointing to the prism in question and to its position inside the head. This makes the part easy to identify.

Replacing this prism in a Leitz Wetzlar microscope head can be the remedy for the following problems:
- if the prism in your head is mechanically damaged: it may be cracked or chipped
- if the prism to be replaced has a damaged anti-reflective coating: this may be caused by fungus, or the coating may be scratched by improper cleaning
- if discolouration or separation (delamination) is visible inside the prism. This is a cemented prism, and over the years the cement can discolour or come apart in places, which is unfortunately visible in the field of view while working with the microscope
- if the reflective layer inside the prism (usually silver) oxidises and loses its properties in places or completely

Before you decide to use this prism in a Leitz Wetzlar head other than model 512582, first compare the exact dimensions (a millimetre scale is visible in the photos) and, if in doubt, ask on internet groups and forums.

Description of this part for the microscope.

This prism was removed from a Leitz Wetzlar binocular head P/N 512582 - but exactly the same one is also used in other models of binocular and trinocular heads.

The last photo in the gallery shows a disassembled Leitz Wetzlar 512582 binocular head, with an arrow pointing to the prism in question and to its position inside the head. This makes the part easy to identify.

Replacing this prism in a Leitz Wetzlar microscope head can be the remedy for the following problems:
- if the prism in your head is mechanically damaged: it may be cracked or chipped
- if the prism to be replaced has a damaged anti-reflective coating: this may be caused by fungus, or the coating may be scratched by improper cleaning
- if discolouration or separation (delamination) is visible inside the prism. Over the years the cement can discolour or come apart in places, which is unfortunately visible in the field of view while working with the microscope
- if the reflective layer oxidises and loses its properties in places or completely

Before you decide to use this prism in a Leitz Wetzlar head other than model 512582, first compare the exact dimensions (a millimetre scale is visible in the photos) and, if in doubt, ask on internet groups and forums.

Description of this part for the microscope.

This prism was removed from a Leitz Wetzlar binocular head P/N 512582 - but exactly the same one is also used in other models of binocular and trinocular heads.

Right means right as seen by the observer looking into the eyepieces. It is neither the central prism that splits the beam towards both eyes, nor the left eyepiece prism.

The last photo in the gallery shows a disassembled Leitz Wetzlar 512582 binocular head, with an arrow pointing to the prism in question and to its position inside the head. This makes the part easy to identify.

Replacing this prism in a Leitz Wetzlar microscope head can be the remedy for the following problems:
- if the prism in your head is mechanically damaged: it may be cracked or chipped
- if the prism to be replaced has a damaged anti-reflective coating: this may be caused by fungus, or the coating may be scratched by improper cleaning
- if discolouration or separation (delamination) is visible inside the prism. Over the years the cement can discolour or come apart in places, which is unfortunately visible in the field of view while working with the microscope
- if the reflective layer oxidises and loses its properties in places or completely

Before you decide to use this prism in a Leitz Wetzlar head other than model 512582, first compare the exact dimensions (a millimetre scale is visible in the photos) and, if in doubt, ask on internet groups and forums.

Description of this part for the microscope.

part of the microscope binocular head - the part into which the eyepiece tubes are screwed.

This mechanism was removed from a Leitz Wetzlar binocular head P/N 512582 - but exactly the same one is also used in other models of binocular and trinocular heads.

Before you use this mechanism (or one of its smaller components) in a Leitz Wetzlar head other than model 512582, first compare the exact dimensions - a millimetre scale is visible in the photos - and if in doubt, ask on internet groups and forums.

Description of this part for the microscope.

microscopes have a standardized mount of 38 mm diameter into which various tubes can be fitted. One of exactly these tubes is presented here.

Basic parameters of the tube presented here:
Markings on the housing: "Germany" on one side and "30ø" on the other side
Mounting connection: a plain tube (cylinder). This is not a tube with a thread or a dovetail
Mounting diameter: 38 mm, that is the standard mounting diameter used in Leitz Wetzlar trinocular heads
Internal optics: none - this tube has no optics inside
Internal diameter: the tube has an internal diameter of 30 mm, so that a projection eyepiece of exactly that diameter can be fitted inside

The trinocular heads this tube fits are used among others in the following microscopes:
- Leitz Wetzlar Orthoplan
- Leitz Wetzlar Diaplan
- Leitz Wetzlar Ergolux
- Leitz Wetzlar Dialux
- Leitz Wetzlar Laborlux
- Leitz Wetzlar SM-LUX
- Leitz Wetzlar Ortholux II
- Leitz Wetzlar Aristoplan
- Leitz Wetzlar HM-LUX

This is not a tube for one particular microscope model. A trino head can be mounted not only on the microscope it was sold with, so the correct assumption is that this is a standard tube for Leitz Wetzlar trinocular heads - and those can be used on most microscope models of this company.

The last photo in the gallery shows what this tube looks like with a 30 mm eyepiece fitted.

The "compatibility" section lists example microscopes this tube fits, although the list is not complete.

Description of this part for the microscope.

Wetzlar binocular head P/N 512821/20 (also written 512 821) - but exactly the same tube is used in other models of binocular and trinocular heads as well.

The same front panel design is found in, among others, the Leitz 512 923/20 and Leitz 512 815 trinocular heads - this tube with diopter adjustment will most likely fit those too.

Diameter of the eyepieces it takes: 23.2 mm.

In the Leitz bino 512821/20 both the left and the right tube have diopter adjustment. They are mechanically identical parts - there is no difference between the left and the right tube. They can be swapped.

Before you decide to use this tube in a Leitz Wetzlar head other than model 512 821/20, first compare the exact dimensions (the photos show a millimetre scale), and if you have any doubts, ask in internet groups and forums.

This is a service part for a microscope head - not for a specific microscope model. Such a head can be mounted on many Leitz Wetzlar microscope models (and even on microscopes from other makers), so no list of microscopes this tube fits can be given - it fits the head, and the user mounts the head wherever he wants.

In the "compatibility" section I list a few example Leitz Wetzlar microscope models that turn up on the second-hand market complete with the head this tube comes from - but this is definitely not a complete list. They include:
- Leitz Wetzlar Dialux 20 / Dialux 22 EB
- Leitz Wetzlar Laborlux K / Laborlux S
- Leitz Wetzlar Diaplan

On the last photos in the gallery you can see the Leitz Wetzlar 512821/20 binocular head taken apart, with an arrow pointing to which part this is and where it sits in the head. That makes it unambiguous to identify.

Description of this part for the microscope.

of:
- two brass carrier plates, each with a round seat for the eyepiece tube (it is to these plates that the tubes https://www.microscopeparts.eu/part/99928 are screwed)
- a central scissor lever made of plastic, with its fixing screw
- two pressure springs (one for each brass plate)

Turning the central lever moves both brass plates outwards symmetrically. It is exactly this constant work of the plastic central lever against the brass plates that wears the plastic lever out - and then it has to be replaced.

This mechanism was removed from the Leitz Wetzlar binocular head P/N 512821/20 (also written 512 821) - but exactly the same one is used in other models of binocular and trinocular heads as well.

The same front panel design is found in, among others, the Leitz 512 923/20 and Leitz 512 815 trinocular heads - this interpupillary mechanism will most likely fit those too.

From the outside this mechanism is covered by plastic covers - one on the right (https://www.microscopeparts.eu/part/99931) and a different one on the left (https://www.microscopeparts.eu/part/99930). These plastic covers carry a printed scale on which the interpupillary distance is read.

Before you decide to use this mechanism in a Leitz Wetzlar head other than model 512 821/20, first compare the exact dimensions (the photos show a millimetre scale), and if you have any doubts, ask in internet groups and forums.

This is a service part for a microscope head - not for a specific microscope model. Such a head can be mounted on many Leitz Wetzlar microscope models (and even on microscopes from other makers), so no list of microscopes this mechanism fits can be given - it fits the head, and the user mounts the head wherever he wants.

In the "compatibility" section I list a few example Leitz Wetzlar microscope models that turn up on the second-hand market complete with the head this mechanism comes from - but this is definitely not a complete list. They include:
- Leitz Wetzlar Dialux 20 / Dialux 22 EB
- Leitz Wetzlar Laborlux K / Laborlux S
- Leitz Wetzlar Diaplan

On the last photos in the gallery you can see the Leitz Wetzlar 512821/20 binocular head, and with arrows I try to show which part this is and where it sits in the head.

Description of this part for the microscope.

internal interpupillary distance adjustment mechanism from the front (https://www.microscopeparts.eu/part/99929). The second, left cover is shaped differently and is a separate item (https://www.microscopeparts.eu/part/99930).

There is no printing on the right cover - the interpupillary scale is printed on the left cover. When the interpupillary distance is changed, the right cover covers or uncovers part of the left cover and with it part of the scale placed there - and this is how the interpupillary distance value is read.

The cover is made of plastic and is screwed with four screws directly to the brass carrier plate, to which the eyepiece tube (https://www.microscopeparts.eu/part/99928) is also fastened.

This cover was removed from the Leitz Wetzlar binocular head P/N 512821/20 (also written 512 821) - but exactly the same one is used in other models of binocular and trinocular heads as well.

The same front panel design is found in, among others, the Leitz 512 923/20 and Leitz 512 815 trinocular heads - this cover will most likely fit those too.

Before you decide to use this cover in a Leitz Wetzlar head other than model 512 821/20, first compare the exact dimensions (the photos show a millimetre scale), and if you have any doubts, ask in internet groups and forums.

This is a service part for a microscope head - not for a specific microscope model. Such a head can be mounted on many Leitz Wetzlar microscope models (and even on microscopes from other makers), so no list of microscopes this cover fits can be given - it fits the head, and the user mounts the head wherever he wants.

In the "compatibility" section I list a few example Leitz Wetzlar microscope models that turn up on the second-hand market complete with the head this cover comes from - but this is definitely not a complete list. They include:
- Leitz Wetzlar Dialux 20 / Dialux 22 EB
- Leitz Wetzlar Laborlux K / Laborlux S
- Leitz Wetzlar Diaplan

On the last photos in the gallery you can see the Leitz Wetzlar 512821/20 binocular head, and with arrows I try to show which part this is and where it sits in the head.

Description of this part for the microscope.

covers that close the internal interpupillary distance adjustment mechanism from the front (https://www.microscopeparts.eu/part/99929). The second, right cover is shaped differently and is a separate item (https://www.microscopeparts.eu/part/99931).

The interpupillary scale is printed on the left cover - there is no printing on the right cover. When the interpupillary distance is changed, the right cover covers or uncovers part of the left cover and with it part of the scale placed there - and this is how the interpupillary distance value is read.

The cover is made of plastic and is screwed with four screws directly to the brass carrier plate, to which the eyepiece tube (https://www.microscopeparts.eu/part/99928) is also fastened.

This cover was removed from the Leitz Wetzlar binocular head P/N 512821/20 (also written 512 821) - but exactly the same one is used in other models of binocular and trinocular heads as well.

The same front panel design is found in, among others, the Leitz 512 923/20 and Leitz 512 815 trinocular heads - this cover will most likely fit those too.

Before you decide to use this cover in a Leitz Wetzlar head other than model 512 821/20, first compare the exact dimensions (the photos show a millimetre scale), and if you have any doubts, ask in internet groups and forums.

This is a service part for a microscope head - not for a specific microscope model. Such a head can be mounted on many Leitz Wetzlar microscope models (and even on microscopes from other makers), so no list of microscopes this cover fits can be given - it fits the head, and the user mounts the head wherever he wants.

In the "compatibility" section I list a few example Leitz Wetzlar microscope models that turn up on the second-hand market complete with the head this cover comes from - but this is definitely not a complete list. They include:
- Leitz Wetzlar Dialux 20 / Dialux 22 EB
- Leitz Wetzlar Laborlux K / Laborlux S
- Leitz Wetzlar Diaplan

On the last photos in the gallery you can see the Leitz Wetzlar 512821/20 binocular head, and with arrows I try to show which part this is and where it sits in the head.