Shutter Angle: Well adjusted 5 to 180 degree. Aperture ring, Zoom ring: Change smoothly, Change well during shot. No dust, No mold, No haze. Reason for sale: I tried to work on 16mm film, but the military issues overlap, and I need a slightly lighter camera, so I sell it. It is a professional 16mm film camera used by John Cassavetes in Faces (1968) and officially used by the BBC.The shutter angle is adjustable from 5 to 180 degrees, the normal motor action sound is 29.5 dB, and the shape is optimized for handhelds, making it easy to shoot documentaries. You can shoot about 12 minutes at a time with a 400ft Mag. The viewfinder is magnified up to 12x and easy to adjust the focus even in low light. EVERY THING IS IN PICTURE!