Re: Need help w/ how to use SM lenses on K mount bodies

[Joe Wilensky]

Many of Pentax's first K-mount lenses (The SMC Pentax lenses) are optically identical, I believe, to their S-M-C Takumar counterparts, including the 50/1.4. From all reports, however, the K-mount 50/1.4 doesn't seem to yellow.

Joe

Thanks everyone for your help. I understand now how
to use the adapter. Now for the important question-is
it worth it? IOW, is it worth it to do this for one
lens (IE the Super Tak. 50mm, 1.4), or should I just
find an M 50mm, 1.4? Comments on image quality
differences?
Is it still easy to find a good quality Super Tak.
50mm, 1.4? I imagine the SMC-M is easier to find, in
good condition?
Also, I would then only have 1 SM lens and going back
& forth might be a bit of a pain?