u/Eintopffuge0627

Hello everyone! Some time ago I bought the Tamron AF 70–300mm Tele-Macro 1:2 62mm A17 at a flea market.

I've now noticed that the aperture blades of the lens do not move, regardless of the selected value. The question is: what could the problem be?

I use the lens with an adapter on my Canon M6, and also without an adapter on my old Canon EOS 500N.

On both cameras, the aperture doesn’t seem to move at all. Neither opening nor closing.

Is there a way to test whether the aperture is actually stuck, or if it might just be a setting issue?

Hey everybody i just got a pentax me with the winder me II and somehow the shutter Button is stuck.

It should pop out as soon as i pull the lever but i cant move the lever at all.

Is this a common problem? How could i fix it?