I have been looking at picking up a fast 85mm prime lens, and have really been intrigued by some of the older manual focus lenses available at this focal range. Something in particular that caugh my eye is the old FD 85L 1.2. I have been doing some reading about adapters for these lenses, and since they have another glass element in the adapter, people have said that the image quality is really degraded. This got me thinking...
Would converting the mount cause the same image degradation as the adapter? I have seen a few FD 85L's with mounts converted for an EOS body and the price really makes me want to consider them. I have read about people using adapters for old super-telephoto FD L's without any loss in IQ, and I was wondering why the same couldn't happen with this lenses in this focal range.
If it doesn't work out, that's fine. I'll just pick up an old Contax CZ 85 1.4 Planar T* and an adapter (), but I just figured I would ask to hear some other people's opinions on the matter.