The Preston FI+Z3 Lens and Camera Control 3 channel system can control both lens functions (focus, iris, and zoom) as well as camera functions (speed, shutter angle, and VTR).
The Preston Digital Microforce 2 Zoom Control features automatic lens calibration, electronic limit setting, and a bright LED bargraph display of zoom position.
The Preston Microforce V+F3 Zoom Control is used to control analog zoom motors mounted externally on the zoom lens, or the internal zoom motors of Panavision lenses.
