Compatible with LANC equipped Canon and Sony video cameras Quick-lock fastening clamp compatible with tubes from 0.47' to 0.9' diameter Dual functionality rocker switch: choose between zoom and focus Side knob for precision control of zoom/focus speed Pressure-sensitive variable speed control available at maximum knob setting Integrated buttons: record start/stop, camera power, autofocus toggle, and rocker directionality reverse LED indicators for mode selection and recording status 55' coiled LANC cable for flexible reach Advanced anti-scratch and dirt-resistant keypad to ensure longevity Robust polycarbonate construction built for durability Anti-slip soft touch finish for improved grip and comfort Wide rotational capacity with a +/-50 Degree zoom/focus rocker Efficient setup with rapid locking and speed control mechanisms