What adapter is this?

[blumoon]

I found this adapter? in a box of stuff from an estate.
I thought it may be an M42 to Pentax K mount, but it's not.
It does fit the M42
Anyone have an idea what it's for??

[/url]P1010833 [/IMG]

[/url]P1010832 [/IMG]

 

[peterm1]

This is a bit of a guess, but my first inclination is that it looks to me possibly like an adapter for one of the weird older mounts like Exakta. M42 was a common lens mount in Europe at that time and so was Exakta. See this image here - looks similar

http://rick_oleson.tripod.com/lensmounts/exakta.jpg

Other images and text shown on the same site might also suggest some similarities to Konika and even more likely Mamiya which according to the site started its 35mm range of cameras with M42 then moved to its own proprietary bayonet mount - hence and adapter for M42 to Mamiya bayonet would make sense. But the truth is a lot of early bayonet lenses had a somewhat similar configuration (e.g 3 bayonet tabs) to the one shown in your photos. And there are similarities to the back of the Tamron Adaptall lens shown lower down. I will leave it to you and those more knowledgeable than me to make your own mind up. See here

http://rick_oleson.tripod.com/index-99.html

 

[blumoon]

Peter,
Thanks very much for your correct reply:
Other images and text shown on the same site might also suggest some similarities to Konika
I tried it on an old Konica Autoflex A and it fits perfectly.

 

[mpaniagua]

Probably wrong but I think its a m42 to Rollei sl35 QBM lens adapter. Something like this:

http://www.ebay.com/itm/Adapter-M42-for-Rollei-SL-35-/253039727155?hash=item3aea57d233:g:ldAAAOxyOJxSMZjd

Got one for my SL35e and sure looks similar (although I don't have on hand to verify).

Regards

Marcelo Paniagua L.

 

[mpaniagua]

Peter,
Thanks very much for your correct reply:
Other images and text shown on the same site might also suggest some similarities to Konika
I tried it on an old Konica Autoflex A and it fits perfectly.

Oh great 🙂

 

[blumoon]

Probably wrong but I think its a m42 to Rollei sl35 QBM lens adapter. Something like this:

http://www.ebay.com/itm/Adapter-M42-for-Rollei-SL-35-/253039727155?hash=item3aea57d233:g:ldAAAOxyOJxSMZjd

Got one for my SL35e and sure looks similar (although I don't have on hand to verify).

Regards

Marcelo Paniagua L.

Marcelo,
Thanks for your reply.
My adapter sure does look very similar to the one in the link .
Now I'm not sure if it's an adapter for Konica or Rollei. Are they the same mount?
I don't have a Rollei to try it on.

 

[mpaniagua]

They are different mounts so if the adapter fits a Konica then its for Konica.


Best regards

Marcelo