Originally posted by ripit I personally have modified nikon, olympus, minolta and canon lenses but have never had to go so far as cutting back the actual lens (just custom mount and sometimes spacers). I have seen a post or two where they cut the actual lens back though. If I'm not mistaken, RioRico has modded a wider variety as well as a larger number of lenses than I have.
I've modified Nikon, Olympus OM, Yashica C/Y, and Petri. I've adapted Exakta, Argus-C3, and various non-mount (projector etc) lenses. I'm still trying to figure out a Pentacon Bayonet mount, still thinking about Minolta MD. I'll probably not bother with Canon, Konica, X-Fujinon, Leica R, etc. I haven't chopped any lens-bodies yet. My database says I've modded and adapted 25 lenses total. Whew!
Every experiment teaches us something. Often it teaches us FAILURE. Most experiments fail. If we knew the results ahead of time, they wouldn't be experiments. It's like learning judgment. We gain good judgment from experience. We gain experience by making bad judgments. That's just how reality works. Oh bother...