Re: Need help on 50mm A f/2 with stuck focussing

[Collin R Brendemuehl]

1.  Parts can be ordered from Pentax.
2.  When one of the leaf springs that's used for the "A" pin position 
set-release
becomes free of the lens frame it jams the aperture ring.  I'm fixing the same
problem right now on the A50/1.7 I got from a PDMLer.  Just a couple of 
hours work
and your lens is a bargain.
3.  Always use a magnet when disassembling A lenses.

Collin
"You impress at a distance, but you impact a life up close. The closer the 
relationship the greater the impact."
Howard Hendricks