For the Eclipse infinity series E800/500/40 and 50i/80i/90i and Ci/Ni and Inverted scopes, it will fit with an adapter available from Nikon. If you have any doubts, please send me the model information. The C Mount is standard. The best use is with a camera chip size of 2/3" but 1/2" is OK.
There are some marks on the outer metal surfaces. Optics are clean and in good condition. Have no further need for this. The item "Nikon 0.6x Microscope Camera C-Mount Adapter for any Nikon Microscope" is in sale since Sunday, January 24, 2021.This item is in the category "Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Microscope Camera & Lens Adapters". The seller is "ozmicro" and is located in Bundaberg, QLD. This item can be shipped worldwide.