This is description of this part:
Carl Zeiss Jena plan compensating microscope eyepieces with 12,5x magnification
Manufacturer: Carl Zeiss Jena
Model: PK 12,5x (16)
Magnification: 12,5x
Field of view number: 16
Mounting diameter: 23.2 mm
Designation: PK = plan compensating - recommended for work with planachromatic objectives, but they also work without any trouble with achromats or apochromats
Because of their very high quality they are often used on microscopes from other manufacturers as well, especially when Carl Zeiss Jena Planachromat objectives are mounted in them. The "compatibility" section lists a long series of microscopes these eyepieces fit - but that list is definitely not complete.
Important: these eyepieces work both on microscopes with a finite tube length (160 mm, for example) and on microscopes with infinity optics. That means you can use them on the Carl Zeiss Jena Amplival microscope just as well as on the Carl Zeiss Jena NU-2 microscope.
What is this part needed for?
- if you don't have these eyepieces in your set
- if you have 12,5x eyepieces, but they have a smaller field of view
- if you want to replace your poor-quality eyepieces
- if you have Planachromat objectives and want to use plan-compensated eyepieces
