BG-D3100 Battery Grip is available
After long last the Phottix BG-D3100 for Nikon D3100 DSLRs is available. The Phottix BG-D3100 holds one or two EN-EL14 batteries. A vertical shutter-release button to enable shooting in the same fashion as a horizontal grip. A short cable connects the grip to the camera’s shutter release port.