The Mamiya Power Drive Grip SV replaces the standard film wind crank of the Pro and Pro TL models and provides single frame automatic film advance at the rate of approximately 1 frame per second.
Lightweight and compact, and containing only a shutter release button, it is designed for simple film winding yet provides an ergonomically designed hand grip
Positioning of the first frame on a roll is achieved by depressing the shutter release button half-way
The unit operates on a 6V lithium battery (2CR5) (not included)