Hi, I'm not familiar with Canon's way of doing things. If their lenses don't have an aperture ring then presumably the control on the body is the only one available for setting the aperture, and my criticisms on that point don't apply.
Having, or deciding, to maintain backward compatibility brings its own set of problems, of course. --- Bob Sunday, November 24, 2002, 8:11:16 PM, you wrote: > Aperture control from the body was an evolutionary step in camera control. > When Canon moved to the EOS, they were able to think about the most > efficient way to control a camera, since they were no longer constrained by > mechanical controls or convention. Their interface has been quite stable > since then. To a great extent aperture rings on lenses are an anachronism > and a concession to backwards compatibility. Both Pentax and Nikon put locks > on their aperture ringed lenses so that they don't accidentally slip into > their adjustable mode.
