The Phottix BG-D800 Battery Grip features AF/On button, command dials, vertical shutter button and multifunction controller. The BG-D800 holds 8 AA batteries or 1 EL-EL15 battery in the included trays. The BG-D800 also provides a comfortable vertical grip with an additional shutter release and scroll wheel for easy access to the camera functions when shooting in the vertical orientation. The grip also has a tripod socket.
Reviewed by 1 customers
It's light, does not easily attach, and screw is loose or likely to get so making it very, very difficult to detach from camera. I bought mine brand new from Adorama and have only used it twice--Oh, God, what a waste of money!--