The Multi-Function Handgrip for the S-Camera from Leica offers you an additional way to hold a second S2 battery. In addition to a handy vertical shutter release, the grip is controlled by an easily accessible on/off switch. For tripod shooters, there are both 1/4 x 20 and 3/8 mounts. In addition, Leica has built-in an anti-twist system to hold the camera steady while working.