Varizoom Programmable Remote Electronic Focus Control for Canon/Fujinon Lenses Programmable remote focus control for most Canon and Fujinon lenses Full manual mode lets user make fine focus adjustments from a distance Programmable mode offers up to 4 quick-change positions Easy-to-read LCD readout; includes 20-foot extension cable Rechargeable battery; weighs 1.75 pounds; 2-year warranty