Originally posted by Mikesul Can someone explain why setting aperture with the aperture ring would be more advantageous or accurate than setting it with the wheel on the camera and the ring at the A position? I have done both ways hundreds of times and I cannot imagine how one would be more accurate. It always seems easier to me to use the camera wheel when that is an option.
When using an A lens for everyday shooting I use the A position and set the aperture with the e-dial. It is convenient, and I can keep my eye in the viewfinder or on the screen if I'm using live view.
But if I am shooting with extension tubes, bellows, or reversed, the e-dial is useless.
Ergo, the aperture ring.
For that reason my focus on lenses has been those with the A setting.
Sure, there is that nifty PK to Nikon lens adapter with an aperture ring that can be used as a workaround for lenses that don't have one. But have collected a nice group of K mount lenses that have the A feature, and they generally produce some great results.
So I don't feel the need to duplicate what I have with the newer lenses made for digital photography.
What I really need is a way to make my M and M42 lenses work like A lenses and be able to set the aperture via the e-dial when mounted directly. I do have a bit of foil on each of them so the camera thinks an A lens is mounted so the information available in the viewfinder is consistent with what I see when a real A lens is mounted.