This is description of this part:
Objective for a vintage Carl Zeiss Jena Stativ XII stereomicroscope
Basic information:
Objective type: for a stereomicroscope, a so-called “objective pair”
Magnification: 2.5x (written in the old style as 2 1/2)
Housing: rough, i.e. the older version
Since the 1930s, Carl Zeiss Jena produced many models and variants of stereomicroscopes, and this objective will fit the vast majority of them, as they share the same mounting method.
Here (https://www.microscopeparts.eu/part/00654) you can see a 1.25x objective for the same microscope model.
What is this part needed for?
- if you have a vintage microscope without lenses and want to replace it with original parts
- if you need a lens to replace a damaged lens, or if your current lens is in very poor condition
- if you have a microscope with lenses of other magnifications and want to have all of them