Hello, fellow microscopists, I have a Nikon M20 0.40 and an Olympus MPlan 40 LWD 0.55 and would like to know their appropriate tube length (should they be using 210 mm tube length)? Other possibilities are 190mm or 240mm; I am guessing they do not infinity tube length.
My Nikon looks like the same as this eBay listing: https://www.ebay.com/itm/254947719047
Its length (from tip to shoulder) is about 28mm. Cosmetic style looks like it came from those old black S series.
My Olympus MPlan 40 LWD looks like this eBay listing:
https://www.ebay.com/itm/374223540930
I vaguely remember the Nikon M20 looks only decent at 160mm tube length with Nikon HKW10 correcting eyepieces. And the Olympus M40 looks about right at 210mm tube length with Olympus Bi WF10x correcting eyepieces.
Thank you.
Tube length of Nikon M20 0.40 and Olympus MPlan 40 LWD 0.55
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Leitzcycler
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