LAMZIX NF-M4/3 NF-MFT 8-stop Aperture Mount Adapter for Nikon A AI-S F G D Mount Lens to Olympus Panasonic M4/3 BMPCC Cameras 8 stops exact aperture dial. Widely used for Nikon lens of G/F/AI/S/D type. Manual focus, can reach infinity focus. Increase MTF (mechanical time fuse).Detachable 1/4 tripod foot. Special paint of aperture hole to minimize internal reflections./Detachable 1/4 tripod foot/ High-precision Aluminum material made.