The Hahnel Innovative Accessories HN-D90 Pro BatteryGrip is designed for the Nikon D90 & D80 digital cameras. The grip allows you to use with 1 or 2 Li-Ion batteries, even if they have different charge levels. You can also use the AA battery tray to power your camera with Ni-MH or alkaline AA batteries. Camera handling is improved with a lower point of gravity with the BatteryGrip in place, especially when long focal lenses are used.
The BatteryGrip also features a vertical shutter release that makes shooting with the camera in a vertical position just as comfortable as shooting horizontally. The included Infrared remote control can be used to activate the built-in infrared receiver on the camera body up to 39' (12m) away. The remote control transmitter provides autofocus before shutter release and continuous shutter release or bulb function for as long as the button remains pressed.
Use 1 or 2 Li-Ion batteries, even if they have different charge levels
Use Ni-MH or alkaline AA batteries to power your camera