d> AFAIK, at least for Canon, to remove the aperture ring, was one of the d> steps toward a camera that can be commanded with just one hand (in d> fact canon cameras have the most-used commands on the right-most part d> of them).
Uh oh. Just try commanding a 20D or 1Ds with only one hand... It's almost impossible with holding the camera securely. And I tried... With an L 2.8 zoom mounted and grip. Yes, basic functions are fine, but changing metering, AF mode, et cetera, all the "most-used commands on the right-most part" need two hands to operate them. Actually the F5 or D1 Nikons are quite easier in this regard. Frantisek