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09-04-2010, 09:18 AM   #1
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What adapter is this for

I can see one side is M42, but could not see anything similar on the other side.


Last edited by ultraviolet; 06-26-2011 at 11:00 PM.
09-04-2010, 09:38 AM   #2
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Doesn't look like a Pentax adapter to me. At first, I was going to say 6x7 to m42, but it's not wide enough or deep enough.

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09-04-2010, 10:10 AM   #3
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I got this with a Spotamatic package. It has A to M switch like M42 lens which transformed to a relatively complex mechanism, has four notch opening compare to usual three for most of the mount I can find. The aperture ring is also confusing.

Last edited by ultraviolet; 09-04-2010 at 10:36 AM.
09-04-2010, 11:03 AM   #4
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I think it is an adaptor for Miranda bayonet lenses. It's the only 35mm 4 claw bayonet I know of. The Miranda system had a dual mount, bayonet and M44 screw.

http://www.camerapedia.org/wiki/Miranda

Bronica used a 4 claw bayonet for its 6x7 but this adaptor isn't nearly big enough for that.

http://www.camerapedia.org/wiki/Bronica

If it is a Miranda adaptor it won't infinity focus. Miranda had a shorter registration distance then Pentax.


Last edited by boriscleto; 09-04-2010 at 12:50 PM.
09-04-2010, 05:31 PM   #5
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Thanks boriscleto & Adam.
Boriscleto, looks like Miranda has male claw on the camera body & Bronica though, as you said, it's too wide but has the male claw on the lens. The adapter I have, can accept male 4 claw. I think more research is needed to identify it. Boriscleto provided some very nice clue, please keep the search on, I am keeping it too. I am just curious about it may have no practical use of it these days.
09-04-2010, 06:01 PM   #6
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My first guess was a Soligor or Vivitar T4 adaptor, but I double checked mine and it has 3 prongs instead of 4 and the female mount is on the lens side.
09-04-2010, 06:15 PM   #7
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I think I've got it this time. Leica M bayonet.

Leica M mount - Wikipedia, the free encyclopedia

Or maybe Contax RF / Nikon S-mount.
09-05-2010, 09:10 AM   #8
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It is the closest match so far, thank you Boriscleto for the research. I tried to find adapters for Leica M mount but did not see any reference yet similar to this adapter.

09-05-2010, 09:56 AM   #9
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Any non corrected adapter for Leica M would be of limited usefulness. The Leica registration distance is so small that focusing would be macro only.
09-05-2010, 02:02 PM   #10
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To me I also think Miranda mount
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