The wireless follow focus system from dji allows users to fine tune the focus of a micro four thirds lens on an inspire 1 quadcopter thats carrying the zenmuse x5 or x5r camera the motor can also be mounted to video rigs equipped with 15mm or 19mm rods such as the ronin or ronin m the brushless motor puts just 002deg of accuracy in your hands so that turning the remote is just like turning the lens itself the remote control transmitter allows you to adjust focus and aperture via its fo