Mount Type - question


Link Posted 08/01/2017 - 08:35


Please can someone help me to identify these lenses (mount type)? I'm planning on using them on my Sony A-57 with a converter ring.

What do you think of these lenses? Are there any good? Check this link for lens mount and names.

Many thank you for your feedback

Last Edited by polonez_ on 08/01/2017 - 08:37


Link Posted 08/01/2017 - 12:08
I've not got my mount illustrations to hand, so can't advice on the mount.
It's not PKA as it has one of the linkages missing.
CZJ lenses are pretty good but not upto the West German Zeiss standard.

I suspect if you try a general photography forum rather than a Pentax specific one You'll have more help on this. The Manual focus forum ( would be a excellent choice.
Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.

.[size=11:].Flickr WPF Panoramio


Link Posted 08/01/2017 - 12:13
I think it might be a Practica B mount. Google it and compare.

Also see

While similar, it isn't a Pentax K mount.
John K
Last Edited by JAK on 08/01/2017 - 12:15


Link Posted 08/01/2017 - 13:00
Definitely Pratica (B?) but not PB mount which has same contacts as B mount but no shield against the aperture lever.

Last Edited by cbrog on 08/01/2017 - 13:23
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