The Libec ZC-9PRO Zoom Control is a variable speed remote zoom that clamps on a tripod pan handle, stabiliser or other device and controls both Canon and Fujinon ENG lenses. Includes a REC/RET button, convertor switches for REC/RET and Canon/Fujinon, and an 8-pin connector cable.
Libec ZC-9PRO Zoom Control has been discontinued, here are some related products you might like: