I just got a 250mm Carl Zeiss Jena Tessar f/4.5 in barrel.
What would be the best way to mount it ? I would like to retain the original diaphragm. If not, I would want one with lots of blades: I have learned that much. I hope to use the lens for portraits and botanicals.
I have some older lenses, in older shutters, and don't mind the older shutters at all.
It is currently on a Sinar board, and while I prefer a Technika board, I can live with the Sinar board, since I have one.
Although I have a Sinar camera, I don't want to use the Sinar shutter device. I tried one, and found it rather cumbersome. Since I shoot in the field as often as indoors, it makes even less sense.
Many thanks.
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