Hi everyone,
Apologies in advance if this topic has been discussed to death, but I couldn't find a clear answer in my searches on the forum. I recently acquired a serviced Beaulieu ZM4, which comes with the Schneider Kreuznach Optivaron f1.4/6-70. There seems to be a consensus however that the f1.8/6-66 (which came with the ZM2 if I'm not mistaken) is the better lens.
My question is thus: what are these differences precisely (softness or the edges, softness at some focal lengths, chromatic aberration, etc.), that make the 6-66 superior? And does it make a substantial difference in practice? I'm planning to use the camera for handheld and tripod work, primarily with low-grain ISO film (50 or 100), scanned at 2K (and maybe at 4K in the future).
Thank you very much!
Best,
Francesco.