Basic question here from someone who's always used manual focus, and is now trying to learn autofocus: I am shooting with a 5DIII, but this could apply to most all 35 cameras: If you're pressing the shutter release with your right hand, and now the cameras are autofocus, so it no longer needs to have your left hand out on the lens to focus or mess with the f-stops, why do camera manufacturers not put the "joystick" for moving the focus point over on the LEFT hand side of the back of the body? It seems like your left hand is now free, so why do they make you do everything with your right hand? Why not mount that "move the focus" thing over on the left side rear, and move it with your left thumb or whatever? The whole thing seems like it would be more balanced, to have both hands doing something. When they teach you piano, they don't force you to do everything with your right hand. Why not same with shooting a modern digital 35?