You can actually mount the PK+MM to a Pentax film SLR but the aperture stop down coupler of the K(AF), K(A), K (original) mount would prevent OM and CY mount lenses from mounting in. No problem in mounting for Nikon F and Konica AR lens. So as to say, PK+MM is only able to accept all the different mounts on a KAF (crippled) SLR which is the *ist.
Plastic mounts from MZ-30, MZ-50, etc have different screws and will not fit although they are KAF(crippled) mount.
I am in the progress of testing the different film SLR compatiablity with PK+MM and will update as soon I am am done with them.
Last edited by Gnarelsek; 02-02-2014 at 01:23 AM.