The PRESTON FIZ is a wireless follow focus system which allows the user to operate up to 3 iris rod mounted motors for lens control plus the on/ off functions for many professional film and video cameras. The system consists of a camera mounted Motor Driver box, motors for Focus, Iris and Zoom and bracketry to allow mounting of these motors to many different camera configurations, and the cables needed to interface the motor driver box with the camera’s on/ off switch, and a hand unit for the focus puller. The hand unit has controls for the Focus Iris and Zoom functions for the camera assistant. Additionally, the hand unit uses a microwave transmitter with a long range antenna allowing the operator control over the lens and camera functions without needing to me tethered to the camera. Common uses for the Preston system include remote camera placements, such as on a crane or for stunts, where personnel could be in harms way, and also for use on the Steadicam.