The Nikon MB-D16 is an ergonomically designed battery grip for the Nikon D750 DSLR camera. The MB-D16 multi-power battery pack extends autonomous operating time and facilitates more comfortable handling when shooting in portrait mode. The pack features alternative shutter-release, multi-selector and AF start buttons for use when holding the camera in the vertical shooting position, as well as secondary main- and sub command dials. It is powered by six AA-size standard batteries via the D16 AA battery holder or a specific Nikon Li-ion battery.