K-3 lens adapter question

[TheGriffin]

Is there a lens adapter that I could use on my Krasnogorsk 3 that would allow me to mount the bayonet style lenses? my K-3 is a screw mount version but I have a few bayonet lenses.

 

[dory_breaux]

Go to cinematography.com and ask Olexander. He knows everything about the K-3.

 

[davide]

There are adapters that allow you to do the opposite (screw mount lenses and k-mount bodies). But I've never found the opposite. Here is a page on pentax lenses that explains how an adapter that allows you to put k mount lenses on screw mount bodies would have issues:

http://kmp.bdimitrov.de/lenses/index.html

Pentax never produced a K-mount adapter (one that allows the use of K-mount lenses on screw-mount bodies) probably due to the fact that such a device would be of little use. Since the diameter of the K mount is larger than that of the screw mount, a K mount lens will have to be mounted in front of the screw-mount body, and the adapter will act like a short extension tube. Because of this, the focusing scale of the lens will not be correct, and the lens will not be able to focus to infinity.