New stuff: The D800 gets the D5100's two-frame JPEG HDR capability. The Protect button gets overloaded some more: if nothing is displayed on the color LCD it becomes a Picture Control button. Auto ISO now can be set to "automatic inverse of the focal length." IPTC data fields can be entered in camera. The mirror delay is programmable, out to 3 seconds. In Live View, the mirror stays up in Tripod Mode. (As much as all this is good, it barely makes a dent in my User Suggestions list.) The new vertical grip is the MB-D12, and it can take either EN-EL15 (D7000, V1, D800) or EN-EL18 (D4) batteries. You need AA or D4 batteries in the grip to get 6 fps.