"John Coyle" <[EMAIL PROTECTED]> wrote: >The subject says it all, but here's why! I just got a Pentax A70-210/4 zoom >in excellent condition (for A$110), except for the mount, which has some >rough patches where various people have abused it. What are the pitfalls >(and is it practical) in taking off the lens mount and replacing it with one >from, say, an old M50/1.7?
It's very easy to do: Only 5 screws. But if you use the mount from an M50/1.7 (or any other K/M lens) you'll lose matrix metering due to the lack of aperture contacts. With a bit of modification you can work around that, though. -- Mark Roberts Photography and writing www.robertstech.com