Paul Richards

I'm interested in a few small details. The AF joystick; is it also a push button? If so, is it customisable? I'd really like to make it be an AF-on button, so I can move the AF point and focus without moving my thumb away from the joystick. The ISO dial; is it easy to use quickly or is it quite difficult to get hold of? How do you find the grip on the camera; nice and positive or do you see it needing an additional grip? Thanks in advance