Originally Posted by CharlesDAMorgan
Forgive me if this is a stupid question, but is there the same need to shim if using the lens on say a Zorki or a Fed rather than a Leica? I suspect the answer is of the how long is a piece of string type, but who knows!
Yes, it is like the" how long is a piece of string" type answer.
I go by the individual lens, some need shimming and a few that actually work fine the way you get them.
Some work great on FSU cameras and Leica the way they come.
Some need shimming to work well on Leica, or cameras with a Leica standard like Nicca/Tower or Canon LTM cameras.
Some need shimming to work well on any camera.
FSU gear can be unpredictable that way, you can never tell.
I had a very late made LTM J-9 lens in black and in new condition that was so out shimming wise from the factory, that you could never get it to focus on any FSU LTM camera or on a Leica or a Canon LTM camera the way it came.