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08-08-2011, 01:18 AM   #1
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[ACQUIRED] 3M-5A 500mm russian tair lens M42

New to the pentax forums but this is my first foray into manual focuses lenses. Anywho, i'm looking for a 500mm mirror lens made by Tair. also goes by 3m-5a/ MTO 500mm f:8 cadiotrophic mirror lens which has a m42 threaded mount or a T-mount.... most likely the former.

anywho, please send me a pm if you have one. i'm looking to spend $110 shipped to california

on a side note, does anyone know the difference between the MTO version and the russian logo'd tair version with the star?

"ZM-5A (3M-5A) 500mm F/8 Mirror (Catadioptric) lens

Russian made JSC "Lytkarino Optical Glass Factory" LZOS based on Maksutov's design.

This lens succeeded the original MTO-500 lens, which was a heavy, brass unit. "MTO" stands for "Maksutov's Tele Ob'ektiv". ZM stands for Zerkal'nyi (Mirror) Maksutov's.

The later 3M-5CA was redesign from 3M-5A cutting size and weight ( 3M-5A weight = 1.225 kg) to 0,62 kg by removing tripod collar and build in hood."

ZM-5A (3M-5A) 500mm F/8 Mirror lens

---------- Post added 08-08-11 at 10:11 AM ----------

Flickriver: Most interesting photos tagged with 3m-5a

also found some interesting shots with the lens

Last edited by wooty; 08-08-2011 at 11:46 AM.
08-10-2011, 02:57 AM   #2
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I've got the 3M-5CA, not for sale though but a pleasant performer once you add a hood. Part of the weight of the earlier version is the inbuilt hood which helps keeping decent contrast levels. Can't help regarding the Tair version. is worth checking out, they might have what you are chasing. And don't discount grabbing the 3m-6A which is f6.3. There's pics from that lens posted by me in the Lens club/ mirror lens section.
08-14-2011, 09:47 PM   #3
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Found! at a local sale.

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