It's always been on the smallest aperture and works via the aperture control on the body. But how I do adjust the aperture using the lens ring itself?
Right, OK. So why is there a ring? Excuse my ignorance.
I imagine if it's being manually operated totally then the aperture ring could be used but you'd have no metering. I'm not certain the shutter would release if the camera had detected an error :shrug:
Right, OK. So why is there a ring? Excuse my ignorance.