Does anyone know if the adapters for these lenses work on all the versions? I inherited 21,35,50, and 135 leica r lenses with an old leicaflex. I see there are 1,2,and 3 cam versions of the lenses and I don't know if that effects the actual mount or just some electronic functions of the camera. This is the oldest leicaflex it seems so I assume these are the oldest 1 cam lenses. None of the adapters mention any difference in the mounts so I'm guessing all is good. At least I hope so since I just ordered one.