This is description of this part:
Original mounting screw used to secure the condenser in the condenser holder.
This particular screw comes from the Carl Zeiss Jena Apl 1.4 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
In the last photo, an arrow clearly indicates which screw is meant and where it is mounted in the condenser holder.
What is this part needed for?
- Sometimes this screw is missing in used microscopes.
- Very often, the tiny screw in this element is broken or missing.
- This element often has dried grease.
- This screw is often damaged because when it wouldn't turn due to dried grease, someone used pliers to turn it.