A couple of days ago I was searching through my local camera shop bargain bin and found an SMC 135.3.5 in beautiful cosmetic condition but it had oily blades and the aperture was very slow. I bought it for £5.
My original intention was to cut off the protruding part of the aperture arm, so that open aperture metering would no longer work, and thought by doing this it would turn into a screwmount type lens with full av metering, just like a Takumar.
Then I thought this lens is too nice to damage in such a way, so beer in hand I plucked up the courage to take it apart and clean the blades with lighter fluid. I didn't know how easy this would be but under half an hour later I now have a fully functioning SMC 135.3.5, for a fiver.
My question is, if I did cut the aperture arm off, would it have worked at all apertures in AV mode, like a Takumar?
Thank you
Phil P