Maintain Slow Crawls Easily with Rocker Zoom! Precision variable-speed control over camera zooms. Ramp up from slow to fast and then slower again in a single move with our custom designed 'rocker' style zoom. Push-button 'rocker' style focus is conveniently at your thumb so you can precisely adjust the focal plane within a shot. Great for doing rack focus (pull focus)! LED light indicates recording, low battery power, tape out and other signals. 40 inches of LANC cable is built in to the unit. Heavy-duty clamping system allows operator exceptional control over tripod and camera functions simultaneously with one hand. Designed for the descriminating shooter - run your camcorder without having to touch it. No more undesired noise from fingers bumping the microphone and lens, etc Assembled with top quality components and the highest degree of care and craftsmanship.