While cleaning out a drawer today, I found some old lenses: A Takumar 35mm 1:2.3 (I think this is an M42 Mount) A Pentax M 50mm 1:1.7 (K mount?) A Takumar 55mm 1:2 (Again, I think it's an M42 Mount) A Vivitar 'Automatic Tele Converter' (this has a screw mount, M42?) Maybe this is a haul or maybe it's junk. None of these have lens caps, but most have been stored 'on camera' (I found two old Asahi Pentax bodies, too) or in a lens case. They seem to be in good shape. Is it worth getting an adaptor? My manual skills are lacking, but maybe it's time to learn.