realVivek wrote:
Whether you believe the lens will cut it or not what is not to believe about Marco Cavina?
Steve Spencer wrote: tsdevine wrote:
Steve,
If you believe this guy, the Olympus OM 200mm f/5 does have some special glass (not saying to the level you may be thinking about.) Note you have to run this through Google translate unless you can read Italian.
There is some CA that has to be removed, but I haven't found this to be very problematic in my shooting experience.
I don't believe him that it is all that special. Olympus designated some of the their OM lenses as ED, like the 100 f/2 ED, and their fast super telephotos lenses. This lens they did not. Neither does the Mir resource for Olympus OM lenses mention it, and instead they describe it as always being a budget lens:
All that leads me to believe if it has special glass it is not likely to be the special glass that is effective in reducing lateral CA --that is the real problem with these telephotos. Even the 100 f/2 ED, which I own and has the ED label and was considered a premium lens in its time, really only partially corrects for these aberrations at a focal length that is much easier to correct.
Nothing. What I don't believe is that what he refers to as special glass is the expensive sort that Olympus used in their lenses that was designed to reduce lateral CA. Those lenses they designated as ED and were not budget lenses and even those were pretty early in the development of such glass and don't complete hold up to controlling CA in comparison with more modern lenses.
Mar 29, 2019 at 09:34 AM
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