This Pre-Marked Focus Ring from Teradek features imperial measurements and is designed for use with the CTRL.1 lens controller unit for automatic calibration and RT lens mapping. It supports a minimum focus distance of 20". The pre-marked ring saves calibration time when swapping out lenses.
Auto-calibrate lenses to pre-marked focus rings
Save time on set from manually calibrating after every lens swap
UPC: 818264025055