The Leofoto CF-06 replacement foot is designed for Canon RF 200-800mm F6.3-9 IS USM. Built-in Arca-Swiss dovetail mounting. Light-weight, Low profile and provides the best possible stability for your lens. Two safety stops are located on the bottom of the foot, which prevents accidental lens release when a quick release receiver clamp is partially open. Hard anodized, aircraft grade aluminum for maximum strength and durability. Compatibility: Canon RF200-800mm F6.3-9 IS USM.