This ARRI Smart Focus Ring Reverse Set is part of the Hi-5 ecosystem. It features 10 auto-detectable focus scales that are plug-and-play when used with the optional Hi-5 hand unit. It includes 10 rings with preprinted precision focus scales with markings in meters, allowing you to accurately adjust the focus from the handwheel. Mounting the focus scale that matches your lens onto your Hi-5 updates the lens data display to accommodate the orientation of the reverse marking ring. This provides the focus puller with an option to match their focus-pulling style.