I just found a CZ Jena 180/9 Apo-Tessar online and scored it for a whopping $35USD. Problem is, I can't find a dang thing online about this process lens. Only info is a writeup by Arne Croell about all the East-German lenses. I'm wondering if anyone has used this optic, if there were any issues front-mounting it to a shutter (thread pitch discrepancies were noted in Croell's article) and any other pertinent info. I'm wanting to reverse mount the lens for very close up photos of insects, leaves, etc.
Any info would be great.
Thanks all!
Phil Forrest
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