by alex on Mon Mar 23, 2009 11:45 pm
Poolhall is right, you won't get a PK/CY adapter. It's not the registration distances (they're almost identical) so much as the lens mount throat differences. The only people I know of who've been able to fit CY lenses to Pentax K bodies are those who modified the mount on the camera body itself, which isn't of course what you want to do, as you'd be stuffed for mounting your PK lenses.
It's a pity, from that perspective, as the 75-150 ML is a nice little zoom, like most in the ML range. A Yashica body to fit it, however, could be an inexpensive option if you wanted to have a play with it.
Alex