Nikon MB-D200 Multi Power Battery Pack for D200
Provides AF-On Button, vertical firing release with lock and front and rear command dials. Requires one or two EN-EL3e or six AA batteries, not included. Supplied with MS-D200 AA Battery Holder. The MB-D200 has an extra main and sub command dial and alternative buttons for shutter release and AF start, making vertical shooting more comfortable.