The third cam can be installed at little cost. I had mine done at Solms along with a general clean, lubrication of the focusing mount and collimation. From memory the cost including postage from Australia and insurance was about US$130.00.
It is worth the trouble, particularly as the first Summicron-R is in my humble opinion a better lens.
I am very new to the whole world of Leica. I just bought a new R8 body without a lens. For Christmas I received a Leitz Summicron-R 50mm f2 (made in Canada) lens. This lens has only two cams. I read about lenses appropriate for the R8 in the manual that came with the body but found the information confusing.
Does anyone know if I can use this lens on the R8 body? I don't want to attach the lens until I am sure. If I can use it with the R8, what will be my limitations?
Thank you very much for your help, Juan. I plan on taking my first pictures on a trip to Eastern Europe (Vienna, Budapest, Prague, Kolin) starting in Paris and going by car via the Swiss alps. If any picture turns out well, I will try to post them on this site.