The 322RC2 is unique in that it allows the camera mounting assembly to be positioned for left or right hand operation, in horizontal or vertical position, and in addition, will allow you to unblock, move, position and lock your camera with one hand in one position. This is due to the revolutionary design of its grip handle which incorporates the ball lock lever. The very act of taking your hand away from the grip locks the head into position, which eliminates the extra step of having to tighten a knob or lever before being ready to shoot. The tension of the ball can be adjusted to accommodate the load weight. And Two Manfrotto Compatible ZAYKIR Quick Release Plates for the RC2 Rapid Connect Adapter