Verifying that old Pentax-A prime lens (setting aperture) works ok
I know this is a stupid question, but I have to ask it anyway ;-) I have old Pentax-A prime lens. When I attach it to my camera (a setting selected), aperture seems to be wide open all the time. I mean that I cannot see aperture blades when looking at the lens. Is this normal behaviour? When lens are deattached I can see the actual aperture size.
If I change aperture value in camera (Av mode), nothing seems to change. Does camera physically move those blades and set the aperture only after the shutter button has been pressed or how should this work? I'm worried, if my lens work ok.
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