Hi all, I have a Canon FD 50mm f/1.4, and reading through the adapted lenses thread over some time now, I've always thought that in order to use it (or any other manual lens), I had to put the camera in Aperture priority or Manual mode. I am not yet confident with using the M mode, so I always go for A mode, and my assumption is that the camera will make its own adjustments (shutter speed, etc.) based on the amount of light/aperture value. However, I've tried taking some test shots of the same subject using different apertures, and it got progressively darker the higher I go aperture-wise. It felt like the shutter speed wasn't changing, I even put the ISO in Auto mode. It seems that my initial assumption was wrong. So am I wrong, or I'm just doing something wrong? Is M mode the only option when using manual lenses?