Libec ZC-9EX Zoom Controller
The Libec ZC-9EX is a lightweight and compact zoom controller which has been specifically designed for use with the Sony PMW-EX1 & EX3. The ZC-9EX features a small rocker for zooming, a rec button which doubles as a return button and a switch which allows the controller to be used with Canon & Fujinon lenses ( when the sony cable and connector are removed ).
The speed of the zoom can be controlled by varying movements of your thumb on the rocker switch.
The ZC-9EX can be mounted to most tripod handles, monopods and support systems for ease of use.