This foot replaces the Nikon lens collar foot on the following lenses. You can mount your lens in any Really Right Stuff clamp when this replacement foot is installed. AF-S 400mm/f2.8-ED-IF (version I & II) lens AF-S 400mm/f2.8-ED-IF VR lens AF-S 400mm/f2.8-ED-IF VR-II lens AF-S 600mm/f4G ED VR lens AF-S 600mm/f4G ED VR-II lens
To remove the Nikon foot, use the M2.5 hex key tool that comes with the LCF-13 to completely remove the four Nikon mounting screws.
To install the LCF-13, use the four original Nikon M3 screws and secure the Really Right Stuff foot to the lens collar.