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.

Description of this part for the microscope.

Description of this part for the microscope.

installed. It enables ergonomic work with the microscope by tilting the observation head at an angle.

Note - this is not a tube with a photo port (that is, it is not a so-called "trino"). It is a tube intended for mounting a binocular head and it does not have a third optical light path.

Other names used for this microscope part:
- Angle tube
- Angular tube
- Inclined tube
- Intermediate tube
- Angle intermediate tube
- Inclined intermediate tube

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.

Jenamed Cytology
- Jenamed Hematology
Carl Zeiss Jena Jenamed 2 and Jenamed Histology microscopes already use different stages.

This particular example shown and offered here was removed from a Carl Zeiss Jena Jenamed Cytology microscope.

The stage in Carl Zeiss Jena Jenamed microscopes is a flat, smooth surface permanently attached with screws to the microscope body, onto which cross table mechanisms or specimen holders are mounted - various versions depending on individual needs.

Mechanically, this stage consists of two elements:
- a smooth upper steel surface attached to the cast form underneath
- the lower cast form (with manufacturer number), which is attached to the microscope body
Both parts have an opening for the microscope condenser. The condenser is mounted from the underside of the stage (condenser available separately).

Metal cast or injection-moulded microscope parts made by Carl Zeiss Jena have their own numbers. This part carries the number 2712 (full marking: Si10 CZ 2712).

In the last photo I indicate with an arrow exactly which element it is and where it is located in the microscope.

Description of this part for the microscope.

microscope. It will most likely also fit other models from the Jenamed series (e.g. Jenamed Variant, Jenamed Fluorescence, Jenamed-2, Jenamed Hematology). Please note however that the Carl Zeiss Jena Jenamed Histology microscope is factory-equipped with a different type of condenser - the "flip-out" type.

To make sure whether this condenser will fit a specific Carl Zeiss Jena microscope from the Jenamed series, it is best to carefully check all dimensions based on the gallery photos or ask a question on a professional forum, e.g. https://www.mikroskopie-forum.de/

Mechanically, this condenser is mounted from the underside of the microscope stage - first it is screwed into the threaded opening in the stage and then secured with three screws. The upper lens can be unscrewed to obtain a condenser with a lower numerical aperture N.A. This condenser does not have an iris diaphragm installed because in Jenamed microscopes it is a separate element.

Replacing the condenser in a Carl Zeiss Jena Jenamed microscope may be necessary:
- when the upper lens becomes damaged, for example when it turns matte due to exposure to various chemical reagents
- when the upper lens becomes damaged due to rubbing. Surprisingly, this unusual type of damage is very common after several decades of microscope use.

In the last photo I indicate with an arrow exactly which element it is and where it is located in the microscope.

Description of this part for the microscope.

was removed from a Carl Zeiss Jena Jenamed Cytology microscope. It will most likely also fit other models from the Jenamed series (e.g. Jenamed Variant, Jenamed Fluorescence, Jenamed-2, Jenamed Hematology).

It does not fit the Jenamed Histology model because the Carl Zeiss Jena Jenamed Histology microscope features a different type of condenser (a 'flip-out' type) by default. For this reason, the iris diaphragm is located slightly lower than in other models and is different.

To make sure whether this iris diaphragm will fit a specific Carl Zeiss Jena microscope from the Jenamed series, it is best to carefully check all dimensions based on the gallery photos or ask a question on a professional forum, e.g. https://www.mikroskopie-forum.de/

Mechanically, this diaphragm is mounted underneath the condenser. The entire diaphragm module is attached to the microscope body with four screws. It is not mechanically connected to the condenser - these are separate elements. The lever pin used to open / close the diaphragm protrudes through a special opening at the front of the microscope, making it possible to adjust the diaphragm opening. This opening is located in the cover of the filter wheel - here one can see further relationships between the individual elements of the light path.

Carl Zeiss Jena Jenamed microscopes do not have a field diaphragm.

Replacement of the aperture diaphragm module in a Carl Zeiss Jena Jenamed microscope may be necessary:
- when some of the iris diaphragm blades become damaged (bent or broken)
- when the lever used to open / close the diaphragm breaks off
- when the teeth of the gear wheel mounted in this module become damaged

Metal cast or injection-moulded microscope parts made by Carl Zeiss Jena have their own numbers. This part carries the number 2713 (full marking: Si10 CZ 2713).

Description of this part for the microscope.

Jenamed Cytology
- Jenamed Hematology
- Jenamed Histology
- Jenamed-2
- Jenamed Fluorescence

Basic parameters:
- Number of objective positions: 5
- Thread: M25
- Mounting method: integrated with a larger block attached to the microscope body using screws

Yes - the "click-stop" detent mechanism (German: Blattfeder) is included, as it is frequently damaged in this model.

Metal cast or injection-moulded parts made by Carl Zeiss Jena have their own numbers. This part carries the number: 2708 (full marking: Si10 CZ 2708).

Please note - the small block with slots for microscope sliders, attached to this revolver and bearing the number Si10 CZ 2709/2, is available separately.

In the last photo I indicate with an arrow exactly which element it is and where it is located in the microscope.

Description of this part for the microscope.

Variant, Cytology, Hematology, Histology, Jenamed-2, Fluorescence)
- Jenapol
- Jenavert
- Jenaval
- Jenatech
- Jenalumar

Please note - this is only the adjustment knob, that is the knob used by the microscope user to make the illumination brighter or dimmer. It is not a potentiometer and therefore not a part of the electrical circuit.

This knob features the characteristic white cap used on Carl Zeiss Jena microscopes, which is often lost during decades of microscope use.

Mechanically, this knob is attached to the potentiometer. The fixing screw is covered by a white metal cap.

In the last photo I indicate with an arrow exactly which element it is and where it is located in a Carl Zeiss Jena Jenamed microscope. In Jenaval and Jenalumar microscopes it is located on the microscope base.

Description of this part for the microscope.

Jenamed Hematology
- Jenamed Histology
- Jenamed-2
- Jenamed Fluorescence

The function of this element is to reflect light coming from the microscope base vertically upwards so that, after passing through the microscope slide with the specimen and the objective, it reaches the eyepieces and ultimately the user's eyes.

Metal cast or injection-moulded parts made by Carl Zeiss Jena have their own numbers. This part carries the number: 2721 (full marking: Si10 CZ 2721).

Replacement of the angle mirror in Carl Zeiss Jena Jenamed microscopes may be necessary in the following cases, among others:
- if the mirror becomes significantly scratched as a result of improper cleaning (minor scratches are usually not visible during normal use)
- if the reflective silver coating of the installed mirror becomes oxidised
- if the mirror becomes damaged, chipped or cracked, for example after coming loose from its mount

Description of this part for the microscope.

attached to the microscope stand with screws. It serves as a mounting platform for mechanical stages, XY stage mechanisms, or specimen holders - various versions depending on the user's requirements.

Mechanically, this stage consists of two elements:
- a smooth upper steel plate attached to the cast component below
- a lower cast component (with the manufacturer's part number) attached to the microscope stand
Both parts have an opening for the microscope condenser. The condenser is mounted from below the stage (condenser available separately).

Metal cast or injection-moulded microscope parts manufactured by Carl Zeiss Jena carry their own part numbers. This part is marked with number 2712 (full marking: Si10 CZ 2712).

This microscope stage DOES NOT FIT the following Carl Zeiss Jena microscopes:
- Jenamed 2
- Jenamed Variant
- Jenamed Cytology
- Jenamed Hematology
- Jenamed Fluorescence

More precisely: the lower part (marked Si10 CZ 2712) is identical to the one used in other Jenamed microscope models (except Jenamed-2), whereas the smooth upper steel plate used in the Jenamed Histology differs from those used in other models by the size of the condenser cut-out (opening).

In the last photo, I indicate with an arrow exactly which component is being offered and where it is located within the microscope.

Description of this part for the microscope.

This diaphragm DOES NOT FIT the following Carl Zeiss Jena microscopes:
- Jenamed 2
- Jenamed Variant
- Jenamed Cytology
- Jenamed Hematology
- Jenamed Fluorescence

Mechanically, this diaphragm is mounted below the condenser. The complete diaphragm module is attached to the microscope stand with two screws. It is not mechanically connected to the condenser - these are separate components. The lever (pin) used to open and close the diaphragm extends through a dedicated opening at the front of the microscope, allowing adjustment of the diaphragm opening. This opening is located in the cover of the filter wheel - illustrating further relationships between successive elements of the light path.

Carl Zeiss Jena Jenamed microscopes do not have a field diaphragm.

Replacement of the aperture diaphragm module in a Carl Zeiss Jena Jenamed Histology microscope may be necessary:
- when one or more iris diaphragm blades become damaged (bent or broken)
- when the lever used to open and close the diaphragm breaks off
- when the teeth of the gear wheel installed in this module become damaged

Metal cast or injection-moulded microscope parts manufactured by Carl Zeiss Jena carry their own part numbers. This part bears number 2714 (full marking: Si10 CZ 2714). The iris diaphragm module used in the other Carl Zeiss Jena Jenamed microscope models bears part number Si10 CZ 2713.

Description of this part for the microscope.

therefore cannot be used in:
- Jenamed Cytology
- Jenamed Variant
- Jenamed Hematology
- Jenamed Fluorescence
- Jenamed-2

Mechanically, this condenser is a "flip-out" design and is mounted in a metal frame together with a lever used to rotate it in order to obtain one of two operating modes: low or high numerical aperture N.A. This lever extends outside the microscope housing so that the user can operate it.

The complete module is mounted underneath the microscope stage by attaching the entire condenser assembly from below with four screws. This condenser does not contain an iris diaphragm because, in Jenamed microscopes, it is a separate component mounted beneath the condenser.

In the Carl Zeiss Jena Jenamed Histology microscope, this condenser is not used together with the wide-field lens that is installed beneath the condenser in other Jenamed models (part Si10 CZ 2711-1). In the Jenamed Histology model, a polarizer is installed in this position instead.

Replacement of the condenser in a Carl Zeiss Jena Jenamed Histology microscope may be necessary:
- when the upper lens becomes damaged, for example by becoming cloudy due to exposure to various chemical reagents
- when the upper lens is damaged by friction. Surprisingly, this unusual type of damage is very common after several decades of microscope use
- when the mechanical lens switching mechanism ("flip-out") becomes damaged

Metal cast or injection-moulded microscope parts manufactured by Carl Zeiss Jena carry their own part numbers. This condenser module bears number 2713 (full marking: Si10 CZ 2713).

In the last photograph, I indicate with an arrow exactly which component is being offered and where it is located within the microscope.

Description of this part for the microscope.

2 Fluorescence

It DOES NOT FIT Carl Zeiss Jena microscopes from the Jenamed series and therefore cannot be used in:
- Jenamed Cytology
- Jenamed Variant
- Jenamed Hematology
- Jenamed Histology

Mechanically, this condenser is mounted on the microscope stage support plate (stage support). The microscope stage is installed onto this support plate together with the condenser. The upper condenser lens can be unscrewed - after removing it, the condenser operates with a lower numerical aperture N.A.

This condenser does not contain an iris diaphragm because, in Jenamed microscopes, it is a separate component mounted beneath the condenser.

Replacement of the condenser in a Carl Zeiss Jena Jenamed-2 microscope may be necessary:
- when the upper lens becomes damaged, for example by becoming cloudy due to exposure to various chemical reagents (common in fluorescence applications)
- when the upper lens is damaged by friction. Surprisingly, this unusual type of damage is very common after several decades of microscope use

Metal cast or injection-moulded microscope parts manufactured by Carl Zeiss Jena carry their own part numbers. The microscope stage support plate on which the condenser is mounted bears number 3030 (full marking: Si10 CZ 3030).

In the last photograph, I indicate with an arrow exactly which component is being offered and where it is located within the microscope.

Description of this part for the microscope.

Jenamed Cytology
- Jenamed Hematology
- Jenamed Histology
- Jenamed-2
- Jenamed Fluorescence

This is a microscope element placed in the microscope base. It transmits the light beam from the illuminator, unifies it (blurs the filament image using a diffuser), and then properly focuses it using a collimating lens. The light beam prepared in this way then hits an angular mirror (this is a separate element).

This microscope part is known on the secondary market among DIY enthusiasts creating their own optics projects and is frequently used by them.

Description of this part for the microscope.

Jenamed Variant
- Jenamed Cytology
- Jenamed Hematology
- Jenamed-2
- Jenamed Fluorescence

Important: this element is not used in the Jenamed Histology model. In this microscope version, a flip-out type condenser is used, and instead of the wide-field lens there is a polarizer. In other words - this element does not fit the Carl Zeiss Jena Jenamed Histology microscope.

This lens enables uniform illumination of the specimen when working with low magnification objectives. It is most commonly used with 3.2x and 5x objectives. It is an element installed in the microscope base and is part of the transmitted light illumination system.

Mechanically, this lens has a pin that extends outside the housing so that the user can insert or remove the lens from the optical path. It is mounted below the condenser aperture diaphragm. In Jenamed microscopes, the condenser, the aperture diaphragm, and this wide-field lens are all separate modules.

Metal cast or injection-moulded microscope parts manufactured by Carl Zeiss Jena carry their own part numbers. This condenser module bears number 2711-1 (full marking: Si10 CZ 2711-1).

Description of this part for the microscope.

following Carl Zeiss Jena microscopes:
- Jenamed Variant
- Jenamed Cytology
- Jenamed Hematology
- Jenamed Histology

This is a large module that is mechanically integrated, although it can be disassembled into smaller parts. However, if replacement becomes necessary, it is usually more convenient to replace the complete assembly. For this reason it is presented and offered here as a complete unit.

The assembly shown here includes:
- internal power supply electronics (potentiometer, transformer, etc.)
- fine focus mechanism (micro-adjustment)

If you need any individual component from this assembly, for example the transformer, a specific electronic board, only the brightness control potentiometer, or only the fine focus mechanism itself, please contact us by email.

Please note:
- the power supply is compatible with every Carl Zeiss Jena Jenamed microscope model, including Jenamed 2 and Jenamed Fluorescence
- however, the complete fine focus mechanism assembly does NOT fit Jenamed-2 and Jenamed Fluorescence, although some smaller components of the fine focus mechanism are identical across all Jenamed microscope models

This complete assembly may be required to solve, among others, the following problems in Carl Zeiss Jena Jenamed microscopes:
- when the microscope illumination does not work due to a defective power supply. This may be caused by mains voltage surges, ageing electronic components, or damage resulting from improper modifications (for example LED conversions)
- when the illumination works but brightness adjustment does not function because of a defective or worn potentiometer
- when the fine focus mechanism does not work properly, for example when the objective turret does not move upward or slowly drops by itself

It is very important to note that the internal power supply used in Carl Zeiss Jena Jenamed microscopes converts 220-240V mains voltage to 6V with a maximum power output of 25W. This power supply has the same specifications as those used in Carl Zeiss Jena Jenaval and Carl Zeiss Jena Jenalumar microscopes. If you own one of these microscopes with a defective power supply, any qualified electronics technician can transfer the electronics from a Jenamed microscope.

Description of this part for the microscope.

for microscope slides. It allows quick insertion and replacement of slides without the use of an XY mechanical stage.

Several different specimen holding systems are found in Carl Zeiss Jena microscopes. The slide cassette system is one of them and represents an alternative to traditional designs using a mechanical stage and slide-retaining clips.

Various names are commonly used for this specimen holder, including:
- slide cassette (German: Gleitkassette)
- specimen cassette (Ger.: Objektkassette)
- microscope specimen cassette
- specimen holder
- slide holder

This is not a complete stage-mounted system and therefore it is not a "slide cassette system". It is only the cassette itself (slide cassette), which is a replaceable wear item installed into the appropriate carrier assembly.

In the last gallery photograph, I indicate the exact component being offered with an arrow.

Description of this part for the microscope.

objective nosepiece. It consists of slots (empty openings) into which filter sliders are inserted. This is the component that the Microscopy-UK portal (https://www.microscopy-uk.org.uk/mag/imgmar09/JenamedFinal.pdf) referred to as "in-tube filter holders".

This filter holder is compatible with the following Carl Zeiss Jena microscopes:
- Jenamed Variant
- Jenamed Cytology
- Jenamed Hematology
- Jenamed Histology
- Jenamed-2
- Jenamed Fluorescence

Metal, cast, and injection-moulded parts manufactured by Carl Zeiss Jena have their own identification numbers. This part bears the number: 2709/2 (full designation: Si10 CZ 2709/2).

Mechanically, this "block with empty slots" is attached to the casting numbered Si10 CZ 2708, which is the objective nosepiece block.

In the last photo of the gallery, I use an arrow to show exactly which component is being described.