I am in the market for a 500-600mm tele for 4x5. I’m considering the Komura/Komuranon 500mm f7 lens. It’s faster than most other makes in this lens type and should be easier to compose and focus. Big and heavy though. I have seen 3 different versions of this lens meaning they actually appear to be constructed differently. All in a Copal #3. Some have aperture scales for 300,400 and 500mm lenses and some don’t. Are some of the versions convertible? Some are labeled Komura and some Komuranon. Any body out there familiar with this particular Komura lens and if any of the versions are better or worse than others? I have a 90mm f5.6 Komuranon I’ve owned since about 1984 that is a fine performer.
Thanks,
Bibbt in San Antonio
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