What the thread found

• The RTMotion MK2 motor operates very quietly, with sound recordists reporting no audible motor noise even at close proximity.
• The system auto-calibrates by powering the receiver and placing the motor near the lens middle, then tracking the lens start and end points.
• The RTMotion MK2 successfully works with various lens types including compact primes, Cooke lenses, Canon L-series lenses, and low-quality lenses with minimal dynamic range.
• The receiver is compact and mounts to 15mm or 19mm rails using mini 4-pin XLR connectors.
• The transmitter uses a standard 9V battery lasting many hours through full shooting days.
• The system supports variable motor speeds from very fast to extremely slow.
• Manual lens calibration is possible without requiring the motor to be physically stopped by hand.
• The cost was approximately 1350 pounds for a single-motor kit upgradeable to three motors on the same receiver.

Depends on

• User experience limited to approximately 4-5 shooting days at the time of review.
• A previous link mentioned negative experiences with RTMotion, though the reviewing user stated those photos did not match their actual unit.
• Extensive menu adjustment options available through LED lights, but not fully explored by the reviewer.

Parts

Follow Focus

Same gear or parts

1. 2026Pulling focus and zoom yourself while operating, especially on live showsOperator practice
2. 2026Swapping an ARRI ALEXA 35 between tripod/studio and Steadicam® mounting: baseplate choice and fastest workflow.FacebookSteadicam operators group
3. 2025LC-1 (Lens Control-1) follow focus system: wired architecture, motors, and early operational experience (1990s).FacebookThe Steadicam Group
4. 2024Modifications to a Steadicam Scout rig for expanded power distribution and connectivityGeneral Discussion