This is description of this part:
Nikon PLI 5 projection photo eyepiece with a 23.2 mm mounting diameter.
Basic parameters of this photo eyepiece:
Manufacturer: Nikon Japan
Model: PLI 5
Magnification: 5x
Field number F.N.: 25
Mounting diameter: 23.2 mm
Please note: PLI is a series of projection eyepieces assigned to the CFI60 system (optics corrected for infinity / "I" as in "infinity"). I have, however, personally seen eyepieces from this series used on microscopes with optics corrected for a finite tube length (160 mm, to be precise).
This eyepiece contains no chromatic correction lenses, so that correction has to be built into the objective (in the case of Nikon objectives these are the CF / CFN / CFI series).
The standard 23.2 mm mounting diameter allows it to be used in the projection tubes of many microscopes from various manufacturers - both biological and stereo ones. It therefore has to be regarded as a very universal projection eyepiece. In the "compatibility" section I list only a small part of the microscopes this photo eyepiece can be used with.
From the experience of people I know, only testing a projection eyepiece yourself on a specific microscope setup gives you certainty about how it will behave.
With every configuration - different objectives, a different tube length, a different photo adapter, camera, DSLR, sensor size - the user will get a different result.
This applies to tests both on microscopes with finite tube length optics (for example the Nikon Alphaphot with 160 mm optics) and infinity optics (for example the Nikon Eclipse TS-100 infinity), and both on older stereo microscopes (for example the Nikon SMZ-2T) and somewhat newer ones such as the Nikon SMZ-18.
What is this part needed for?
- if you know the specification of this projection eyepiece and know that exactly this one meets your expectations
- if you want a complete set of projection eyepieces from this series and this is the one you are missing
- if you want such a photo eyepiece in order to test it yourself and decide whether it fits your setup
