Jon M wrote:
Just got that bezel off at last - there's no screws under it. Anybody had one of these apart to know exactly what I'm looking for here?
It's something that works as a clutch transmiting the rotation from the focus ring to the focus helicoid.
This page explains how to do it on a 135mm f3.5 takumar, I don't know if the M is similar http://www.kyphoto.com/classics/pentaxtakumar.html
