I just bought one of these adapters. I got it cheap in excellent condition and I'm planning to use MD wide angle lenses with my M2. With scale focusing it should work all right.
However, I'm a little puzzled because the lens turns quite a bit longer than it should, the focus mark on the lens is approximately at one o'clock instead of twelve o'clock. It doesn't really matter, I'm just curious why.
Are there any 22233 users out there who could shed some light on this? 🙂