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.

microscopes from other manufacturers, especially when Carl Zeiss Jena Planachromat objectives are mounted.

Description of this part for the microscope.

This diaphragm is necessary to set illumination according to the Koehler system.

This element is used in a diaphragm installed in various Carl Zeiss Jena microscope models built on the Amplival stand:
- Amplival
- Amplival Interphako
- Amplival Pol
- Vertival
- Peraval
- Fluoval
- Docuval

The field diaphragm located in the microscope base is part of the transmitted light path - it is not a diaphragm for EPI (reflected) illumination. However, it is VERY LIKELY that individual blades may also fit reflected light diaphragms and other diaphragms (e.g. aperture diaphragms) in Carl Zeiss Jena microscopes and condensers.

Damage to iris diaphragm blades is one of the more common failures in Carl Zeiss Jena microscopes. Most often this occurs when:
- the lubricant in the diaphragm opening / closing mechanism dries out and the user tries to move it by force
- a foreign object gets between the blades (e.g. a glass fragment from a chipped microscope slide)
- the diaphragm is closed too quickly or opened too far

In the event of an iris diaphragm failure, it is possible to:
- replace the entire element (condenser or diaphragm module)
- replace only the diaphragm
- repair the diaphragm by replacing the damaged blades

Description of this part for the microscope.

the microscope arm
- and a mounting screw

The mounting screw itself - as a separate component - fits practically most Carl Zeiss Jena microscopes based on the Amplival system:
- Amplival
- Amplival Interphako
- Amplival Pol
- Vertival
- Peraval
- Fluoval
- Docuval

Carl Zeiss Jena developed a complete modular microscope system based on connections made with this type of screw. Thanks to this design, the screw as a service part is also compatible with most accessories, modules and components that can be mounted to the microscope, including:
- EPI arms
- Parktaric Zoom Tube module
- Interphako heads

Important - carefully check the shape and dimensions of the screw to make sure it is the size you need. For example, the modular design of the Carl Zeiss Jena Jenamed microscope is based on mounting screws of a different shape and size (search for it in this database for comparison).

Description of this part for the microscope.

Jenalumar microscope.
This element has fins that function as a heat sink for heat dissipation.

Description of this part for the microscope.

This mounting screw fits most Carl Zeiss Jena microscopes of the CF250 series:
- Jenamed
- Jenaval
- Jenalumar
- Jenapol
- Jenatech
- Jenavert

Carl Zeiss Jena developed a complete modular microscope system based on connections using this type of screw. Therefore, this screw as a service part is also compatible with most accessories, modules and microscope elements that can be mounted to the microscope, including:
- magnification changers
- VIS analyzers
- trinocular heads
- Interphako heads

Important - carefully check the shape and dimensions of the screw to make sure it is the size you need. For example, the modular design of the Carl Zeiss Jena Amplival microscope is based on mounting screws of a different shape and size (search for it in this database to have a comparison).

Description of this part for the microscope.

into the slot located above the objective turret and below the microscope head.

Note - Carl Zeiss Jena produced several types of sliders with different dimensions and shapes. For Jenamed series microscopes there are at least six versions. Always carefully check the slider dimensions to make sure this is exactly the type you need. A millimeter scale is shown in each photo.

Description of this part for the microscope.

CZ

This is a slider inserted into the slot located above the objective turret and below the microscope head.

Note - Carl Zeiss Jena produced several types of sliders with different dimensions and shapes. For Jenamed series microscopes there are at least six versions. Always carefully check the slider dimensions to make sure this is exactly the type you need. A millimeter scale is shown in each photo.

Description of this part for the microscope.

stage and under the condenser, e.g. for discs used for phase contrast or darkfield
- three smaller sliders fit into three additional slots between the objective turret and the head (e.g. Pol analyzer, quartz ROT I and quarter-wave plate)

Note - Carl Zeiss Jena produced several types of sliders with different dimensions and shapes. There are at least six variants for microscopes of the Jenamed series. Always carefully check the slider dimensions to make sure this is the exact type you need. A millimeter scale is shown in each photo.

Description of this part for the microscope.

produced several types of sliders with different dimensions and shapes; for example, for Jenamed series microscopes there are at least six versions. Always carefully check the slider dimensions to make sure this is exactly the version you need.

Description of this part for the microscope.

millimeter scale.

The XY cross mechanism is used for precise movement of the specimen slide on the microscope stage.

Basic versions of Carl Zeiss Jena microscopes are equipped with simple stages with clips that hold the specimen. For this reason, at magnifications above 400x, manual movement of the specimen slide becomes very difficult. This is exactly the purpose of cross stage attachments - to allow very precise movement of the specimen, for example at higher magnifications.

This is not a cheap plastic cross stage attachment - it is a solidly built Carl Zeiss Jena construction, highly sought after on the used microscope market.

Note - if the mounting pin spacing matches, this cross mechanism can be installed on microscope stages of virtually any manufacturer.

Note - Carl Zeiss Jena produced cross mechanisms both with fixed specimen clips and with a spring-loaded clip. The version offered here has fixed clips without a spring.

Description of this part for the microscope.

polarized transmitted light with the possibility of use as a brightfield condenser
Mounting: the condenser is permanently integrated with a dovetail mount
Top lens: flip-out system allowing the upper lens to be moved into or out of the optical path to change the numerical aperture
Iris diaphragm: yes
Diffuser: yes, with the possibility of moving it into or out of the optical path
Polarizer: yes, rotatable, with the possibility of moving it into or out of the optical path

This condenser fits the following Carl Zeiss Jena microscope models:
- Polmi-A
- Nf
- Ng
- Nu / Nu2

Note: despite the visual similarity of the mounting interface, this condenser does NOT fit the Carl Zeiss Jena Lu microscope.

Important: the condenser is permanently integrated with the dovetail mount and cannot be used with other microscopes without significant modifications.

Description of this part for the microscope.

inserted.

This is an element for repair of a microscope condenser by Carl Zeiss Jena, model Abbe 1.2.
Please note that this is an element (component) for a microscope part (condenser), not for a specific microscope model.

The handle in this ring breaks very frequently, and then the iris diaphragm cannot be opened or closed and the condenser loses its functionality. In such a case, instead of replacing the entire condenser, it is enough to replace only this element - that is, to repair the condenser (recommendation: always repair - never throw away).

Note - over the years Carl Zeiss Jena produced the Abbe 1.2 condenser in different versions, and this ring is available in at least two variants:
- ring with a thickness of 2.5 mm and a handle width of 6 mm
- ring with a thickness of 2 mm and a handle width of 3.5 mm

Here I present and offer a ring with a thickness of 2.5 mm and a handle width of 6 mm. Be sure to check whether this is exactly the ring you need.

Description of this part for the microscope.

are inserted.

This is an element for repair of a microscope condenser by Carl Zeiss Jena, model Abbe 1.2.
Please note that this is an element (component) for a microscope part (condenser), not for a specific microscope model.

The handle in this ring breaks very frequently, and then the iris diaphragm cannot be opened or closed and the condenser loses its functionality. In such a case, instead of replacing the entire condenser, it is enough to replace only this element - that is, to repair the condenser (recommendation: always repair - never throw away).

Note - over the years Carl Zeiss Jena produced the Abbe 1.2 condenser in different versions, and this ring is available in at least two variants:
- ring with a thickness of 2.5 mm and a handle width of 6 mm
- ring with a thickness of 2 mm and a handle width of 3.5 mm

Here I present and offer a ring with a thickness of 2 mm and a handle width of 3,5 mm. Be sure to check whether this is exactly the ring you need.

Description of this part for the microscope.

repair or upgrade of a microscope condenser by Carl Zeiss Jena, model Abbe 1.2.
Please note that this is an element (component) for a microscope part (condenser), not for a specific microscope model.

The Carl Zeiss Jena Abbe 1.2 condenser is available in the following versions:
- with a wide-field lens mounted at the bottom of the condenser, below the filter holder
- with a filter holder only, without a wide-field lens

With this lens, you can upgrade your condenser if it is not equipped with one.

Description of this part for the microscope.

model Abbe 1.2.
Please note that this is an element (a subcomponent) for a microscope part (the condenser) and not for a specific microscope model.

Description of this part for the microscope.

element (component) for a microscope part (condenser), not for a specific microscope model.

Description of this part for the microscope.

transmitted light
- precise adjustment in two axes
- rotating stage center with scale (accuracy: 0.1 degree)
- built-in electronic measuring sensors enabling position display on a dedicated readout unit (not included)
- position locking screws (movement lock)

The Carl Zeiss Jena BK 70x50 microscope is one of the most versatile small toolmakers microscopes. Its fully modular design and a wide range of accessories allow it to be configured as a workshop microscope, measuring microscope, for Schlieren observation, metallurgical use, or even biological applications. This stage is one of many options for expanding the BK 70x50 microscope.

Description of this part for the microscope.

Jenalumar 50

Please note the following:
- both microscopes listed here use this illuminator for EPI fluorescence, i.e. reflected light. This is not transmitted-light fluorescence.
- this illuminator requires a Carl Zeiss Jena SH 50 power supply for operation
- the Carl Zeiss Jena Jenalumar microscope was produced in two variants - this illuminator fits the Jenalumar version with two small, separate illumination modules
- information can be found on the Internet claiming that this illuminator is suitable for Carl Zeiss Jena Jenavert microscopes. This is NOT correct.
- an HBO lamp is not the same as an XBO lamp.
- Jenamed microscopes other than the "Fluorescence" version have a differently mounted head and this illuminator CANNOT be installed on them.

Important - operating used, overheated HBO lamps, lamps with unknown operating time or from an uncertain source may result in explosion, damage to the illuminator, contamination of the room and a risk to the user's life and health. For this reason, this illuminator DOES NOT INCLUDE a light source (i.e. it does not include the HBO mercury burner).

Description of this part for the microscope.

Most often this occurs when:
- the lubricant in the diaphragm opening / closing mechanism dries out and the user tries to move it by force
- a foreign object gets between the blades (e.g. a glass fragment from a chipped microscope slide)
- the diaphragm is closed too quickly or opened too far

In the event of an iris diaphragm failure, it is possible to:
- replace the entire condenser
- replace only the diaphragm
- repair the diaphragm by replacing the damaged blades

This is an element for repair of a microscope condenser by Carl Zeiss Jena, model Abbe 1.2.
Please note that this is an element (component) for a microscope part (condenser), not for a specific microscope model.

Description of this part for the microscope.

coarse adjustment knobs and the gear rack on the microscope arm.

Description of this part for the microscope.

molded parts of Carl Zeiss Jena carry their own numbers. This microscope element bears the number 2580 (full designation: Si10 CZ 2580).

This is a service element (replacement part) for the trino head (head with photo output), suitable for Carl Zeiss Jena CF-250 microscopes. Please note that this is a microscope element for a microscope part (the trinocular head) and not a part for a specific microscope model.

Carl Zeiss Jena CF-250 microscopes have a modular design, and the microscope part to which the eyepieces are mounted (commonly referred to as the "head", "binocular" or "binocular tube") is a separate element from the angled tube (sometimes the German term "Winkeltubus" is used). If the angled tube has a photographic output, it is referred to as a "Fototubus". It is precisely for this microscope part that the upper main part of the housing is offered and described here.

Note - although the Carl Zeiss Jena Jenapol and Jenatech microscopes also belong to the CF-250 series, they have a differently constructed photographic output and this housing DOES NOT FIT them.

The exact dimensions of the described and offered microscope element can be seen in the gallery photos. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the head, in order to clearly identify this part.

Many different names are commonly used for the trino head. It is worth listing them here - each of them refers to the same microscope part.
- photo head
- trino head
- trinocular head
- trinocular head unit
- photo dome
- photo tube
- inclined tube with photo output

Description of this part for the microscope.

assembly of two lenses
- knob for moving and shifting the lenses
- mechanism for moving and shifting the lenses

Metal, cast or injection-molded parts manufactured by Carl Zeiss Jena have their own identification numbers. In this mechanism the lens is mounted on a cast part marked with number 2582 (full marking: Si10 CZ 2582).

This is a service element (repair part) of the trinocular head (photo tube), suitable for Carl Zeiss Jena microscopes of the CF-250 series. Please note that this is an element (component) of a microscope part (German: "Fototubus") and not a part dedicated to a specific microscope model.

Carl Zeiss Jena microscopes of the CF-250 series have a modular design and the microscope part to which the eyepieces are mounted (commonly referred to as "head", "binocular" or "twin tube") is a separate element from the angle tube (sometimes the German term "Winkeltubus" is used). If the angle tube has a photographic output, it is referred to as a "photo tube". The Bertrand lens offered and described here is intended specifically for this microscope part.

Hinweis - Carl Zeiss Jena microscopes Jenapol and Jenatech, although they also belong to the CF-250 series, have a differently designed photographic output and this mechanism DOES NOT FIT these models.

Hinweis - Carl Zeiss Jena also produced a simplified version of the photo tube which does not contain a Bertrand lens inside. In the image gallery there is also a page from the manufacturer's catalog so that it is visible whether these versions differ externally in appearance. This Bertrand lens shown and offered here CANNOT be installed in such a simplified version of the photo tube.

The photos visible in the gallery show the exact dimensions of the element described and offered here. Additionally, in the last photo an arrow indicates which element is concerned and where it is located in the head, in order to clearly identify this part.

In common usage many names are used for the photo tube. It is worth listing them here - each of them refers to the same microscope part.
- photo head
- trinocular head
- trinocular microscope head
- trinocular head assembly
- photo dome
- inclined tube with photo output

Description of this part for the microscope.

however, no light source is included in the set.
- A stage with top mounting or with side guide rails can be installed on this base
- There is a rack on the stand

This heavy, stable stand is often used for applications completely unrelated to microscopes, for example for mounting drills, lasers or hardness testers.

Description of this part for the microscope.

Ergaval microscope has two centering screws. The offer concerns a single centering screw.

The last photo in the gallery clearly shows with an arrow which element is being offered.

Description of this part for the microscope.

is being offered.

Fits among others the following Carl Zeiss Jena microscope models:
- Lumipan
- Lg
- Lr
- Lu

Note - production of the L-Stativ series microscopes began before World War II and continued into the 1950s. Over the years, small design details changed, including the method of mounting the microscope head.
- the earliest models had a threaded microscope head, and there was no fixing screw at all
- the latest models already featured an advanced mounting system with a spring screw (you can see it in the database under number 00659)

Description of this part for the microscope.

second half of the 1970s. It's quite possible they were used in Spekol devices. Definitely better quality than inexpensive Chinese cuvettes.

Description of this part for the microscope.

half of the 1970s. It's quite possible they were used in Spekol devices. Definitely better quality than inexpensive Chinese cuvettes.

Description of this part for the microscope.

they were used in Spekol devices. Definitely better quality than inexpensive Chinese cuvettes.

Description of this part for the microscope.

It's quite possible it was used in Spekol devices. Definitely better quality than inexpensive Chinese cuvettes.

Description of this part for the microscope.

The last photo shows which element is being offered.

Fits among others the following Carl Zeiss Jena microscope models:
- Lumipan
- Lg
- Lr
- Lu

Note - production of the L-Stativ series microscopes began before World War II and continued into the 1950s. Over the years, small design details changed, including the method of mounting the microscope stage. Microscope models that have a non-removable stage (screwed to the stand) do not have and do not need such a spring screw.

Description of this part for the microscope.

4 mo2 condenser holder that was used in the Carl Zeiss Jena Ergaval microscope. The same condenser (but with a different lower lens) is used in an identical holder in Fluoval microscopes. Condenser holders with such screws can also be found in the following microscopes:
- Docuval
- Amplival
- NU-2

The purpose of this spring screw is to push the clamp in which the condenser is mounted outward. Thanks to the spring integrated in the screw, it is possible to center the condenser using long centering screws (you can find such a centering screw in the database under number 99132).

In the last photo, an arrow clearly indicates which screw is meant and where it is mounted in the condenser holder.

Description of this part for the microscope.

that was used in the Carl Zeiss Jena Ergaval microscope. The same condenser (but with a different lower lens) is used in an identical holder in Fluoval microscopes. Condenser holders with such screws can also be found in the following microscopes:
- Docuval
- Amplival
- NU-2

In the last photo, an arrow clearly indicates which screw is meant and where it is mounted in the condenser holder.

Description of this part for the microscope.

logo
- knobs operating the internal mechanism
- gear assembly forming the fine focus mechanism (it can be removed because it is a replaceable microscope element)

The entire block fits the Carl Zeiss Jena Lg microscope (from the L-Stativ group), however the fine focus mechanism inside can be unscrewed and as far as I know (to the best of my knowledge) it also fits the microscopes:
- Carl Zeiss Jena Lr
- Carl Zeiss Jena Lu
- Carl Zeiss Jena Lumipan

Description of this part for the microscope.

Jena microscope models whose name ends with "-val", for example:
- Laboval
- Ergaval
- Amplival

Description of this part for the microscope.

were used to sell phase contrast sets for (among others) the following Carl Zeiss Jena microscopes:
- Lg
- Lumipan
- Nf

Description of this part for the microscope.

allows correction of vision in one eye and proper adjustment of image focus.

Basic parameters:
- Type: tube with diopter correction ring
- Diameter of supported eyepieces: 30 mm
- Color: white

Fits 30 mm heads used, among others, in the following Carl Zeiss Jena microscopes:
- Carl Zeiss Jena Jenamed
- Carl Zeiss Jena Jenalab
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenatech
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenavert

Some Carl Zeiss Jena Jenalab and Jenamed microscopes (for example the Jenamed Fluorescence) were factory-equipped with binocular heads accepting 23.2 mm eyepieces. In that case this end cap is **not** compatible with that binocular head. By "that" I specifically mean the binocular head, as this is a component of the head rather than of the microscope itself.

Interestingly, 30 mm wide-field binocular heads are also occasionally fitted to older microscopes from the Mikroval series (for example Ergaval and Amplival). When combined with GF-Planachromat or GF-Planapochromat objectives (the latter also used on the Docuval), this provides arguably the best optical combination available for Carl Zeiss Jena microscopes with a 160 mm tube length.

Description of this part for the microscope.

they were used in Spekol devices. Definitely better quality than inexpensive Chinese cuvettes.

Description of this part for the microscope.

objective
Manufacturer name: Epi-Objektiv 18x/0.30 Trockensystem Tubus unendlich, 1940
Name used before 1940: Epi-Objektiv 9.7 Epi, 18 Met Trockensystem Tubus unendlich, 1937
Thread: due to measurement inaccuracy I provide: 11 mm or 11.5 mm
Additional: the objective includes an insert that fits the EPI illuminator
Magnification (so called magnifier magnification): 18x
Numerical aperture: 0.30
Oil immersion: NO (dry objective)
Focal length: 13.8 mm

Compatibility:
- Carl Zeiss Jena EPI reflected light condenser W
- Carl Zeiss Jena EPI reflected light condenser WK
- Carl Zeiss Jena Metalliput metallurgical microscope
- Carl Zeiss Jena Met Mi IX metallurgical microscope

This unusual objective has a narrow special thread, but with the use of an intermediate ring with correction lens it can also be used on a standard microscope stand (e.g. Carl Zeiss Jena Lg).

When this objective is used on the Carl Zeiss Jena Metalliput microscope with an infinity corrected tube (in practice the tube length there is 250 mm), the full magnification of 18x is obtained.
When this objective is used together with a reflected light condenser (with an additional intermediate lens in the tube, that is with a 160 mm tube length) the concave mirrors partially extend under the objective, therefore the free working distance cannot be fully utilized. In such a configuration the real magnification is about two times smaller, approximately 9.7x.

Epi / Met objectives produced in the years 1937-1939 have two numbers engraved on the housing: 9.7 Epi, 18 Met.
a) the smaller value applies when used with the EPI condenser (correction lens focal length = 160 mm)
b) the larger value applies to the magnification obtained when the objective is used with the metallurgical microscope (correction lens focal length = 250 mm).
In 1940 the method of marking magnification on the objective housing was changed and only the "magnifier magnification" and the numerical aperture value were provided.

Information: the source of this information is the website of the Zeiss company archive. This information is provided in order to spread knowledge about rarely encountered microscope elements.

Description of this part for the microscope.

objective
Manufacturer name: Epi-Objektiv 30x/0.40 Trockensystem Tubus unendlich, 1940
Name used before 1940: Epi-Objektiv 16/0.40 Trockensystem Tubus unendlich, 1937
Thread: due to measurement inaccuracy I provide: 11 mm or 11.5 mm
Additional: the objective includes an insert that fits the EPI illuminator
Magnification (so called magnifier magnification): 30x
Numerical aperture: 0.40
Oil immersion: NO (dry objective)
Focal length: 8,1 mm

Compatibility:
- Carl Zeiss Jena EPI reflected light condenser W
- Carl Zeiss Jena EPI reflected light condenser WK
- Carl Zeiss Jena Metalliput metallurgical microscope
- Carl Zeiss Jena Met Mi IX metallurgical microscope

This unusual objective has a narrow special thread, but with the use of an intermediate ring with correction lens it can also be used on a standard microscope stand (e.g. Carl Zeiss Jena Lg).

When this objective is used on the Carl Zeiss Jena Metalliput microscope with an infinity corrected tube (in practice the tube length there is 250 mm), the full magnification of 30x is obtained.
When this objective is used together with a reflected light condenser (with an additional intermediate lens in the tube, that is with a 160 mm tube length) the concave mirrors partially extend under the objective, therefore the free working distance cannot be fully utilized. In such a configuration the real magnification is about two times smaller, approximately 16x.

Epi / Met objectives produced in the years 1937-1939 have two numbers engraved on the housing: 16 Epi, 30 Met.
a) the smaller value applies when used with the EPI condenser (correction lens focal length = 160 mm)
b) the larger value applies to the magnification obtained when the objective is used with the metallurgical microscope (correction lens focal length = 250 mm).
In 1940 the method of marking magnification on the objective housing was changed and only the "magnifier magnification" and the numerical aperture value were provided.

Information: the source of this information is the website of the Zeiss company archive. This information is provided in order to spread knowledge about rarely encountered microscope elements.

Description of this part for the microscope.

objective
Manufacturer name: Epi-Objektiv 34/0.60 Trockensystem Tubus unendlich, 1939
Name used after 1940: Epi-Objektiv 60x/0.60 Trockensystem Tubus unendlich, 1940
Model: 62 0,60 Met / 34 0,60 Epi
Thread: due to measurement inaccuracy I provide: 11 mm or 11.5 mm
Additional: the objective includes an insert that fits the EPI illuminator
Magnification (so called magnifier magnification): 62x
Numerical aperture: 0.60
Oil immersion: NO (dry objective)
Focal length: 4,1 mm

Compatibility:
- Carl Zeiss Jena EPI reflected light condenser W
- Carl Zeiss Jena EPI reflected light condenser WK
- Carl Zeiss Jena Metalliput metallurgical microscope
- Carl Zeiss Jena Met Mi IX metallurgical microscope

This unusual objective has a narrow special thread, but with the use of an intermediate ring with correction lens it can also be used on a standard microscope stand (e.g. Carl Zeiss Jena Lg).

When this objective is used on the Carl Zeiss Jena Metalliput microscope with an infinity corrected tube (in practice the tube length there is 250 mm), the full magnification of 62x is obtained.
When this objective is used together with a reflected light condenser (with an additional intermediate lens in the tube, that is with a 160 mm tube length) the concave mirrors partially extend under the objective, therefore the free working distance cannot be fully utilized. In such a configuration the real magnification is about two times smaller, approximately 34x.

Epi / Met objectives produced in the years 1937-1939 have two numbers engraved on the housing: 62 0,60 Met / 34 0,60 Epi.
a) the smaller value applies when used with the EPI condenser (correction lens focal length = 160 mm)
b) the larger value applies to the magnification obtained when the objective is used with the metallurgical microscope (correction lens focal length = 250 mm).
In 1940 the method of marking magnification on the objective housing was changed and only the "magnifier magnification" and the numerical aperture value were provided.

Information: the source of this information is the website of the Zeiss company archive. This information is provided in order to spread knowledge about rarely encountered microscope elements.

Description of this part for the microscope.

250 series microscopes.
Note that this element is a component of a microscope element (the angled tube) and not a part dedicated to a specific microscope model.

This element fits, among others, the following Carl Zeiss Jena microscopes from the CF-250 series:
- Jenamed
- Jenaval
- Jenalumar
- Jenavert
- Jenatech
- Jenapol

Important: the element DOES NOT INCLUDE the screw used to secure the microscope head.

Inside this element there is a protective glass (without its own magnification, so called "zero lens") with a violet anti-reflection coating.
Although this holder for the binocular microscope head and the holder located at the photographic port look the same, have the same dimensions and are mechanically compatible - they are NOT (!) identical.
- the binocular microscope head mount contains a protective glass with a violet anti-reflection coating
- the mount located at the photographic port contains a protective glass with a green anti-reflection coating.

The photos visible in the gallery show the exact dimensions of the element described and offered here. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

250 series microscopes.
Note that this element is a component of a microscope element (the angled tube with photo port) and not a part dedicated to a specific microscope model.

This element fits, among others, the following Carl Zeiss Jena microscopes from the CF-250 series:
- Jenamed
- Jenaval
- Jenalumar
- Jenavert
- Jenatech
- Jenapol

Important: the element DOES NOT INCLUDE the screw used to secure the microscope head.

Inside this element there is a protective glass (without its own magnification, so called "zero lens") with a green anti-reflection coating.
Although this holder at the photographic port and the holder for the binocular microscope head look the same, have the same dimensions and are mechanically compatible - they are NOT (!) identical.
- the binocular microscope head mount contains a protective glass with a violet anti-reflection coating
- the mount located at the photographic port contains a protective glass with a green anti-reflection coating.

The photos visible in the gallery show the exact dimensions of the element described and offered here. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

objective
Manufacturer name: Epi-Objektiv 2.7/0.09 Trockensystem Tubus unendlich, 1937
Name used after 1940: Epi-Objektiv 5x/0.09 Trockensystem Tubus unendlich, 1940
Model: 5 Met / 2,7 Epi
Thread: due to measurement inaccuracy I provide: 11 mm or 11.5 mm
Additional: the objective includes an insert that fits the EPI illuminator
Magnification (so called magnifier magnification): 5x
Numerical aperture: 0.09
Oil immersion: NO (dry objective)
Focal length: 50 mm

Compatibility:
- Carl Zeiss Jena EPI reflected light condenser W
- Carl Zeiss Jena EPI reflected light condenser WK
- Carl Zeiss Jena Metalliput metallurgical microscope
- Carl Zeiss Jena Met Mi IX metallurgical microscope

This unusual objective has a narrow special thread, but with the use of an intermediate ring with correction lens it can also be used on a standard microscope stand (e.g. Carl Zeiss Jena Lg).

When this objective is used on the Carl Zeiss Jena Metalliput microscope with an infinity corrected tube (in practice the tube length there is 250 mm), the full magnification of 5x is obtained.
When this objective is used together with a reflected light condenser (with an additional intermediate lens in the tube, that is with a 160 mm tube length) the concave mirrors partially extend under the objective, therefore the free working distance cannot be fully utilized. In such a configuration the real magnification is about two times smaller, approximately 2.7x.

Epi / Met objectives produced in the years 1937-1939 have two numbers engraved on the housing: 5 Met / 2,7 Epi.
a) the smaller value applies when used with the EPI condenser (correction lens focal length = 160 mm)
b) the larger value applies to the magnification obtained when the objective is used with the metallurgical microscope (correction lens focal length = 250 mm).
In 1940 the method of marking magnification on the objective housing was changed and only the "magnifier magnification" and the numerical aperture value were provided.

Information: the source of this information is the website of the Zeiss company archive. This information is provided in order to spread knowledge about rarely encountered microscope elements.

Description of this part for the microscope.

for all models)

This microscope element consists of two main parts:
- the element that is attached to the microscope stand (in English: microscope stage holder support)
- and the element attached to it in which interchangeable microscope stages are mounted (in English: microscope stage holder). This element contains two screws for centering the microscope stage and a spring-loaded front screw.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

with ball bearings.

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

transmitted or reflected light microscopes, as long as the eyepiece mounting diameter on the microscope head is 23.2 mm.

Manufacturer: Carl Zeiss Jena
Model: D42 15x
Magnification: 15x
Image: micrometer and X-crosshair
Mounting diameter: 23.2 mm

The eyepiece features diopter adjustment and image sharpness adjustment on a micrometer slide.

Identical K15x eyepieces were also made by other manufacturers, such as Lomo and PZO.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

screw also fits microscope stages with the handle pointing down, which were used in microscopes:
- Carl Zeiss Jena Amplival / Metaval (long handle)
- Carl Zeiss Jena Ergaval (short handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

9
Type of contrast: Phv = variable phase contrast
For objective: with magnification 6.3x
Material: glass in a metal frame
Diameter: 35 mm including the frame

Description of this part for the microscope.

9
Type of contrast: Phv = variable phase contrast
For objective: with magnification 16x
Material: glass in a metal frame
Diameter: 35 mm including the frame

Description of this part for the microscope.

9
Type of contrast: Phv = variable phase contrast
For objective: with magnification 40x
Material: glass in a metal frame
Diameter: 35 mm including the frame

Description of this part for the microscope.

9
Type of contrast: Phv = variable phase contrast
For objective: with magnification 100x
Material: glass in a metal frame
Diameter: 35 mm including the frame

Description of this part for the microscope.

likely also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

"click" when rotating the condenser, and for the condenser stopping in the correct position. This part is a plate that fits into the appropriate recess (detent).

This service part (repair element / replacement part) most likely also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

part) most likely also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

centering screws.

This service part (repair element / replacement part) most likely also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

users, without a special tool, try to center the phase discs with various pliers.

This service part (repair element / replacement part) most likely also fits other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

other turret condensers made by Carl Zeiss Jena, because in the vast majority of cases different models differ only in the mounting and optics - the internal mechanics and construction are otherwise the same.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Carl Zeiss Jena CF-250 microscopes have a modular design, and the microscope part to which the eyepieces are mounted (commonly referred to as the "head", "binocular" or "binocular tube") is a separate element from the angled tube (sometimes the German term "Winkeltubus" is used). If the angled tube has a photographic output, it is referred to as a "Fototubus". It is precisely for this microscope part that the element is offered and described here.

Note - although the Carl Zeiss Jena Jenapol and Jenatech microscopes also belong to the CF-250 series, they have a differently constructed photographic output and this part DOES NOT FIT them.

The exact dimensions of the described and offered microscope element can be seen in the gallery photos.

Description of this part for the microscope.

suitable for Carl Zeiss Jena CF-250 microscopes. Please note that this is a microscope element for a microscope part (the trinocular head) and not a part for a specific microscope model.

Carl Zeiss Jena CF-250 microscopes have a modular design, and the microscope part to which the eyepieces are mounted (commonly referred to as the "head", "binocular" or "binocular tube") is a separate element from the angled tube (sometimes the German term "Winkeltubus" is used). If the angled tube has a photographic output, it is referred to as a "Fototubus". It is precisely for this microscope part that the prism carrier is offered and described here.

Note - although the Carl Zeiss Jena Jenapol and Jenatech microscopes also belong to the CF-250 series, they have a differently constructed photographic output and this part DOES NOT FIT them.

The exact dimensions of the described and offered microscope element can be seen in the gallery photos. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the head, in order to clearly identify this part.

Many different names are commonly used for the trino head. It is worth listing them here - each of them refers to the same microscope part.
- photo head
- trino head
- trinocular head
- trinocular head unit
- photo dome
- photo tube
- inclined tube with photo output

Description of this part for the microscope.

this adapter allows operation of 1 objective at a time - this is not a objective turret (revolver)
- the adapter allows centering the objective relative to the optical axis, which is extremely important in polarization
- the adapter does not support objectives with RMS thread (approx. 20 mm)

Interesting fact:
This adapter fits the Carl Zeiss Jena Polmi-A microscope. This microscope is a construction designed for work with objectives with RMS thread and a tube length of 160 mm, but after using this adapter it is possible to use objectives with M19 thread corrected for infinity. Such tests were performed by Mr. Wojciech Plonka and he found that it works, but in this case the objectives produce stronger magnification than nominal (link: https://www.facebook.com/groups/254539018060854/?multi_permalinks=1857582481089825).

Description of this part for the microscope.

6x
Angle: 30°

Other names for this part:
- intermediate tube
- mirror tube

Description of this part for the microscope.

Always exercise extreme caution when purchasing used mercury vapor lamps.

Technical specifications:
Manufacturer: VEB Narva
Type: HBO 200 F
Power: 200 watts
Lamp voltage: 50 - 65 V
Lamp current: 3.4 - 4.4 A DC
Warm-up time: 5 - 8 min
Ignition system: HF ignition
Rated service life: 200 h
Length: 100 mm
Width: 42 mm

Description of this part for the microscope.

Carl Zeiss Jena Metaval
- Carl Zeiss Jena Docuval
- Carl Zeiss Jena NU-2

There are several models of mechanical microscope stages from Carl Zeiss Jena designed for microscopes of the Mikroval series. They differ mainly in the placement of the control knobs used for movement in both axes, for example:
- the Ergaval model has a short handle with control knobs
- the Amplival model has a long handle
- some variants of the Laboval model had a stage without a handle with control knobs, where the knobs were arranged horizontally on both sides of the stage.

However, many of the individual components used in these stages are identical.

Many of these stages can also be used interchangeably with other microscopes of the Vertival series, which means that many microscopes today no longer have their original stages. For this reason it is best to examine the photos carefully to make sure that the element shown and offered here will fit.

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

Carl Zeiss Jena Metaval
- Carl Zeiss Jena Docuval
- Carl Zeiss Jena NU-2

There are several models of mechanical microscope stages from Carl Zeiss Jena designed for microscopes of the Mikroval series. They differ mainly in the placement of the control knobs used for movement in both axes, for example:
- the Ergaval model has a short handle with control knobs
- the Amplival model has a long handle
- some variants of the Laboval model had a stage without a handle with control knobs, where the knobs were arranged horizontally on both sides of the stage.

However, many of the individual components used in these stages are identical.

Many of these stages can also be used interchangeably with other microscopes of the Vertival series, which means that many microscopes today no longer have their original stages. For this reason it is best to examine the photos carefully to make sure that the element shown and offered here will fit.

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

Carl Zeiss Jena Metaval
- Carl Zeiss Jena Docuval
- Carl Zeiss Jena NU-2

There are several models of mechanical microscope stages from Carl Zeiss Jena designed for microscopes of the Mikroval series. They differ mainly in the placement of the control knobs used for movement in both axes, for example:
- the Ergaval model has a short handle with control knobs
- the Amplival model has a long handle
- some variants of the Laboval model had a stage without a handle with control knobs, where the knobs were arranged horizontally on both sides of the stage.

However, many of the individual components used in these stages are identical.

Many of these stages can also be used interchangeably with other microscopes of the Vertival series, which means that many microscopes today no longer have their original stages. For this reason it is best to examine the photos carefully to make sure that the element shown and offered here will fit.

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

rotating the condenser, and for the condenser stopping in the correct position. This part is a plate that fits into the appropriate recess (detent).

Fits pancratic condensers used in the following microscopes:
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

Does not fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

does NOT fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

Does NOT fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

microscopes:
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

does NOT fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

microscopes:
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

Does not fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

probably fits most Carl Zeiss Jena microscope stages models

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.

Description of this part for the microscope.

Amplival microscope.

Does not fit the black pancratic condenser used in the Carl Zeiss Jena Carl Zeiss Jena Lumpian / Nf / Nu microscopes.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Amplival microscope.

Does not fit the black pancratic condenser used in the Carl Zeiss Jena Carl Zeiss Jena Lumpian / Nf / Nu microscopes.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Does not fit the black pancratic condenser used in the Carl Zeiss Jena Carl Zeiss Jena Lumpian / Nf / Nu microscopes.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU / NU2

does NOT fit the gray pancratic condenser used in the Carl Zeiss Jena Amplival microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Zeiss Jena produced two very similar microscope stage models - one with a long manipulator (used, for example, in Amplival microscopes) and the other with a short manipulator (used, for example, in Ergaval microscopes). This element fits the models with the long manipulator (long handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.

Description of this part for the microscope.

microscope stage models - one with a long manipulator (used, for example, in Amplival microscopes) and the other with a short manipulator (used, for example, in Ergaval microscopes). This element fits the models with the short manipulator (short handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.

Description of this part for the microscope.

rotating the condenser, and for the condenser stopping in the correct position. This part is a plate that fits into the appropriate recess (detent).

Fits pancratic condensers used in the Carl Zeiss Jena Amplival microscopes.

Does not fit the black pancratic condenser used in the Carl Zeiss Jena Lumipan / Nf / Nu microscope.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

Zeiss Jena produced two very similar microscope stage models - one with a long manipulator (used, for example, in Amplival microscopes) and the other with a short manipulator (used, for example, in Ergaval microscopes). This element fits the models with the long manipulator (long handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.

Description of this part for the microscope.

microscope stage models - one with a long manipulator (used, for example, in Amplival microscopes) and the other with a short manipulator (used, for example, in Ergaval microscopes). This element fits the models with the short manipulator (short handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.

Description of this part for the microscope.

fit the black pancratic condenser used in the Carl Zeiss Jena Carl Zeiss Jena Lumpian / Nf / Nu microscopes.

In the photo gallery detailed photos of this element together with the dimensions are available. Additionally, in the last photo an arrow indicates which element it is and where it is located in the condenser in order to clearly identify this part.

Description of this part for the microscope.

screw also fits microscope cross-stage attachments used in microscopes such as:
- Carl Zeiss Jena Laboval
- Carl Zeiss Jena Eduval

In the photo gallery there are detailed photos of this element together with the dimensions. Additionally, in the last photo an arrow indicates which element is being referred to and where it is located in the microscope head, in order to clearly identify this part.

Description of this part for the microscope.

Zeiss Jena produced two very similar microscope stage models - one with a long manipulator (used, for example, in Amplival microscopes) and the other with a short manipulator (used, for example, in Ergaval microscopes). This element fits the models with the long manipulator (long handle).

In the photo gallery there are detailed photos of this element together with the dimensions. Thanks to this it is possible to identify exactly which part of the microscope stage it is.