Anyone recognize this lens mount recognize

?Given the lens but I do not know what it mounts on. Does anyone recognize it.

Thanks in advance

Don

Praktica B mount.

Praktica B (Bayonet) mount and Pentax K mount similar?

Edited April 4, 2018 by Dieter Schaefer

Not familiar with B-mount but Beroflex used to import that stuff too. - Contacts would be very far off for K-mount. Any markings on the rear cap or aperture ring?

I was told it would mount on a Praktica but not on any I have. Also not on any Pentax, Sears, Kiev, Canon, Petri or Zenit I have. The are 3 electrical contacts on it.

Here is a Praktica BX20. Note the position of the three contacts on the mount and the lens release. Not sure who made the Beroflex lenses.

 

Edited April 5, 2018 by m42dave

Here is a Praktica BX20. Note the position of the three contacts on the mount and the lens release. Not sure who made the Beroflex lenses.

 

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Thanx! Now I am an idiot. I have the BX20 but it had a 42mm thread adaptor on it and it looked like an integral part of the camera. I knew I had a auto Praktika and could not figure out why this would not match with any I had

Thanx! Now I am an idiot

I know the feeling... :D

 

I also have the M42 adapter (a Japanese-made one, not original Pentacon) and in fact only use M42 lenses on the BX20, since I didn't want to get into another set of lenses.

 

PB is similar to Pentax K, but not interchangeable with it.

I am afraid that my eyesight is just not good enough for the o”dear range finder view finders so I am starting to use more automated features and cameras that I have but did not use. Also I am going to let the shopsr9cess my color photos and use a little more. Portrait 800 with longet lens. So now it is the AE1, Praktika and Rebel film camera. Which many would say is a film camera but not a manual camera.

Here is a Praktica B rear lens mount

However Pentax-K is also similar - (It is said that they were meant to be the same, but somebody flinched)