The VariZoom Zoom Control for Canon CN-E 18-80mm & 70-200mm Lenses is a compact, professional, lightweight zoom control with speed control that allows you to control your zoom lens as is if it were an extension of your body. It is compatible with the Canon CN-E 18-80mm and CN-E 70-200mm compact servo cine lenses, as well as select Canon broadcast lenses with a 20-pin connector. The pressure-sensitivity zoom rocker allows for slow or quick zooms, and the integrated speed limiter allows you to adjust the maximum speed of the zoom to suit the needs of the shot. The one-shot autofocus button allows you to grab focus quickly, so you can zoom in, focus, and zoom back out to your frame in a minimum of time, ensuring your shot is sharp. Additionally, the zoom rocker has a built-in record/pause button.