Algoessailing
TPF Noob!
I have a Pentax ZX-M and a ZX-7 and several lenses. I recently purchased a used Vivitar 80-200 zoom P/K lens. This lens fits the "m" but not the "7". I have another vivitar P/K lens that fits both bodies, and an albinar p/k lens that fits both bodies. Any Ideas why this one won't work? The pentax website shows that both bodies take the same mounts except the "m" also takes an S mount. Is my new lens and S mount? How can I tell if p/k lenses are the right mount? Thanks for any help
DAve
DAve