Hi,
So I've got an old Panagor bellows unit (like
this one) which came as part of an ebay auction bundle a while ago.
It's got an aperture lever on the camera-side mount which, when I move it, moves the aperture lever on the mounted (M) lens and opens the iris in the normal way.
When I mount the whole assembly on the camera in M mode, the iris remains fully open all the time - I can't close it by operating the shutter, the green button or DOF-preview.
Wide open is pretty useless for macro shots, obviously!
I have a workaround which I don't really want to try outdoors or on a tripod, which is to compose normally then release the bellows from the body and rotate it so the aperture lever is no longer actuated and the aperture set on the lens takes precedence - then I can use the green button to meter (like I would on an M42 lens) and shoot.
This bellows unit was essentially free so getting it working properly obviously isn't a big deal - but it'd be nice.
Any ideas?