This Teradek RT Pre-Marked Focus Ring Set for CTRL.3 (Imperial) is designed for use with the CTRL.3 Lens Motor to quickly auto-calibrate lenses as they’re swapped out. Please note that this ring is measured in inches and feet. If you prefer to measure in meters, we have the Teradek RT Pre-Marked Focus Ring Set – Metric.

The Teradek RT Pre-Marked Focus Ring Set for CTRL.3 (Imperial) includes:

• 1x Pre-Marked Focus Ring – 10” minimum focus
• 1x Pre-Marked Focus Ring – 14” minimum focus
• 1x Pre-Marked Focus Ring – 20” minimum focus
• 1x Pre-Marked Focus Ring – 3’6” minimum focus
• 1x Pre-Marked Focus Ring – 6’ minimum focus
• 1x Pre-Marked Focus Ring – 10’ minimum focus