Buy from Amazon : http://www.amazon.com/gp/product/B000MSXVV0?tag=scratchandsti-20 <br /> <br />Varizoom Programmable Remote Electronic Focus Control for Canon/Fujinon Lenses <br /> <br />Programmable remote focus control for most Canon and Fujinon lenses <br />Full manual mode lets user make fine focus adjustments from a distance <br />Programmable mode offers up to 4 quick-change positions <br />Easy-to-read LCD readout includes 20-foot extension cable <br />Rechargeable battery weighs 175 pounds 2-year warranty
