Tom Schofield said: >>>I always saw the dot as functional -- Isn't the reason for the red dot to be >>>able to line up the mount by touch without looking? Dot on lens to release >>>button on body and turn clockwise. For those of us without a body for each >>>lens! ;-)<<< Hi Tom, True. :-) However an old fart like me after all these years changes them without looking, it's sort of like breathing it just happens without thought. :-) ted