#1. "RE: D800 owners question (How to select AF method)" In response to Reply # 0
On the D800, you press a button on the A/M selector (on the front of the camera, next to the lens) and dial with wheels to desired setting. One wheel selects C or S, other selects number of AF points etc. The A/M selector is situated where the C/S/M selector used to be, so now an addional button on it.