The R1 Adjustable Tilt Ring Mount Head from Nodal Ninja is a single row pano head designed for use on monopods, poles or rotators. However the RD4 rotator requires an optional adapter (sold separately). The R1 pano head incorporates a unique tilting option suitable for certain fisheye lenses and sensor formats under different applications. The ring clamp mounts directly onto the lens itself freeing up the camera. Different cameras can be used on the same lens without adjusting any settings.