Specifically designed for Panasonic HVX200 and DVX100B this is the first and only zoom, focus, and iris control. This powerful combination offers precise control over these three camera functions. Operator may switch between auto and manual control for either focus or iris at anytime. Works on all camera supports, stabilizers, tripods, & jibs The RockZFI utilizes a pressure-sensitive, side-to-side rocker switch like broadcast zoom controls. This rocker has a greater range of motion for a finer degree of zoom control than the throttle style zoom controls. Adjust the exposure or focus with a finger, smooth and quiet knobs provide easy operation while you compose your shots. Independent focus/iris knobs allow for two people to operate together for critical focus during moving shots or crane moves, imagine the possibilities! The body switches click into position, letting you watch the picture, not your hands. Wide-sweep variable rocker for smooth, sustainable zooms Low profile record/pause button Unique dual knob adjustment Body switches for manual/auto modes Width 2" Length 2.75" Max Clamp Diameter 1.25" Cord Length 40" Weight 0.25 lb. Material ABS Compatibility DVX100B, HVX200 Warranty 2 years parts/labor