More from Amazon.com : http://www.amazon.com/gp/product/B00G34QGAU?tag=purrfectcatdi-20 <br /> <br />NEEWER? Follow-Focus CN-90F With Gear Ring Belt for HDSLR cameras <br /> <br />Completely gear driven design for slip-free and accurate movement <br />Ideal for video taking with HDSLR cameras such as Canon EOS 600D 60D etc <br />Adjustable locking systemCompatible with all DSLR cameras video cameras HDV DV specially for HDSLR camera with movie function <br />Improved design with a pair of stops on the ring for adjustable focus indication You can control follow focus in desired range by setting the stops and so for desired focal lengths <br />Gear drive can be mounted from either side
