The DJI Ronin-S Focus Motor is an add-on accessory for the DJI Ronin-S gimbal that allows control of lens focus with the Ronin-S finger wheel. Key features include:

Designed to work with the DJI Ronin-S
Adjustable focus range
Attaches via included 15mm rod
Includes lens gear
Expanded Focus Capabilities. The DJI Ronin-S Focus Motor works in conjunction with the DJI Ronin-S gimbal’s focus control wheel to upgrade the focusing precision of the Ronin S. This also allows users to control lenses without internal focusing motors.