Posted on Thursday, September 29, 2005 - 01:57 am:
It is a Vivitar 28mm 1:2 WIDE ANGLE-AUTO, s/n 22xxxxxxx, with 55m filter thread. Lens aperture ring does turn but the iris won't reponse. It looks like a mechanical failure, not the usual oily aperture blades.
Anyone know how to fix this problem?
I also noticed the front lens rotates when focused. Is this normal?