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.

two for each condenser. This offer is for a single centering screw.

Description of this part for the microscope.

Description of this part for the microscope.

Ergaval
- Amplival
- Docuval
- Metaval
- Epival
- Vertival
- Nf
- NU
- Epityp
- Epignost

Also for Carl Zeiss Jena devices and accessories such as:
- Winkeltube
- Pankratik Zoom-System
- Interphako
- and many others.

Note - some models have different dimensions for these screws, for example, longer ones.

Note - older models of the Carl Zeiss Jena Lg microscope use a different screw.

Note - the small screw at the front of this part unscrews in the OPPOSITE direction than most screws, and this is the most common cause of damage.

Description of this part for the microscope.

Ergaval
- Amplival
- Docuval
- Metaval
- Epival
- Vertival
- Nf
- NU

Note: Please examine the photos carefully. If I have more than one of this part, some of the screws may show traces of improper (forceful) unscrewing. These are not major traces - mostly minor scratches. Of course, they do not affect the functionality of the element at all.

Note - some models have different screw dimensions, for example, longer ones.

Note - in microscopes with a centering stage holder (for polarizing stages), this screw may be different.

Note - the small screw at the front of this part unscrews in the OPPOSITE direction than most screws, and this is the most common cause of damage.

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.

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.

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.

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.

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.

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.

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.

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.

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

Note - over the years, Zeiss microscopes (or the same microscopes sold under the Zeiss-Winkel name or under the Opton brand), especially simpler models such as the Zeiss Standard Junior, used different types of head-retaining screws. These were not necessarily spring-loaded screws - in some cases ordinary threaded clamping screws were used instead.

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

Description of this part for the microscope.

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

Note - over the years, Zeiss microscopes (or the same microscopes sold under the Zeiss-Winkel name or under the Opton brand), especially simpler models such as the Zeiss Standard Junior, used different types of head-centering screws. These were not necessarily this type - in some cases ordinary threaded clamping screws were used instead.

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

In the last photos in the gallery, I use arrows to show exactly which microscope component is being offered and where it is in the microscope located .

Description of this part for the microscope.

screw was removed from a Olympus CH microscope, but it will most likely fit most models of the CH series, for example:
- Olympus CHK
- Olympus CHB
- Olympus CK2
- Olympus CH
- Olympus CH-2

Description of this part for the microscope.

removed from a Zeiss Standard GFL microscope, but it also fits condenser holders used, among others, in the following microscopes:
- Zeiss Standard 14 / 16 / 18
- Zeiss Standard WL / WL 89
- Zeiss Universal
- Zeiss Photomicroscope (Zeiss PM / Phomi - all models)
- Zeiss Ultraphot

In these microscope models, the condenser has a dovetail mounting ring. This dovetail includes a notch into which the spring-loaded screw presented here engages. You can see what this mounting ring looks like and how the notch is shaped in the photo gallery of item No. 99625 in this database.

Description of this part for the microscope.

microscopes.

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

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

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

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

Description of this part for the microscope.

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

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

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

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

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

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

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

Description of this part for the microscope.

These screws fit the following Carl Zeiss Jena microscopes:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- Carl Zeiss Jena Jenavert

The so-called "small illuminators", that is the halogen 25W one (like this: https://www.microscopeparts.eu/gallery/99693) or the HBO 50W, are held by two such screws. Large HBO 250W illuminators with an integrated power supply are mounted on 4 such screws.

If your microscope has only one small illuminator (for example a Jenaval with transmitted light or a Jenavert with EPI illumination), you can extend it with a second (also small) illuminator. You will then need two screws for that.

What is unusual (and sometimes the reason why a user cannot find these screws for a long time) is that they are unscrewed FROM THE FRONT of the microscope. The heads of these screws sit in openings cut into the white sheet-metal side covers of the microscope. You can see these covers with the screw openings here: https://www.microscopeparts.eu/gallery/99692.