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Forum: Monthly Photo Contests
03-08-2021, 02:27 PM
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Forum: Monthly Photo Contests
08-09-2020, 10:32 PM
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I would like to nominate this photo
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Forum: Winners' Showcase
06-08-2020, 11:48 AM
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This is an underestimated but grateful little flower
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Forum: Monthly Photo Contests
06-02-2020, 12:54 PM
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I would like to nominate this photo
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Forum: Pentax SLR Lens Discussion
04-23-2020, 03:09 AM
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Following my previous mails, I found a very interesting document about Komura/Komuranon lenses. It is in French, but the information is easily understandable.
In the annex you'll find a partial view of the Komuranon prime lenses (the document itself is 45 by 42 cm and printed on both sides). It is interesting to see that the 24mm f2.5 has 11 glass elements in 8 groups, impressive engineering.
Further, the folder contains information (including the lens formulas) on 50 to 150mm enlarger lenses, 200 f3.5 and 300 mm f4.5 Komuranon tele-lenses and the 38/90 f3.5 + 75/150 f4.5 + 80/210 f4.5 and 90-250mm f4.5 Komuranon zoom lenses.
After having scanned the internet for some time, this document is quite unique and therefor I wanted to share it with you.
In case someone needs data on the above lenses, just send me a message.
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Forum: Pentax SLR Lens Discussion
03-21-2020, 04:40 AM
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Following my earlier message, I'm adding a couple of picture of the Komura 24mm lens (on my KX).
Pictures made with the Komura 28 f2.5 on my Samsung NX11.
Paul
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Forum: Pentax SLR Lens Discussion
03-20-2020, 09:50 AM
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Hi, I'm new on this forum (though I have been here before, because there so much of useful information).
I just wanted to share that I managed to purchase this Komura Lens Mfg Ltd Komuranon 28mm f2.5 (FD mount) recently (from France).
The strange thing is that is does not show K.M.C. on the lens and no serial number. This should be engraved and filled with white paint, but it simply isn't there. Any opinion about this? Could it be a kind of early units or prototype?
Further - by sheer coincidence - I purchased another beauty: Komura Lens Mfg Ltd Komuranon KMC 24mm f2.5. I searched the internet but nothing can be found about this one. By the way this one is in Pentax mount. I tried both (with adapters) on my Samsung NX11 and the results are not bad.
Kind regards, Paul
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