Quote Originally Posted by psvensson
Dante Stella has a convincing analysis of the focusing problems of Russian lenses at http://www.dantestella.com/technical/compat.html

Some people swear their Russian LTM lenses focus correctly on non-Soviet bodies. The only Russian lens I have, a 50/2, shows the focusing problem predicted by Stella when used on a Bessa body.
Have you ever tried a fake Leitz Elmar 50mm F3.5 on your enlarger for printing? I've heard some people do that with the real l Leitz one, but I wonder if you can do that with the fake/copy version. That's just another reason why I was looking at Russian/USSR cameras and lenses.