Manual Aperture and focus both working perfectly. Lens will take INCREDIBLE IMAGES!Please note, this lens will vignette on the wide side if used on BMPCC, 4/3, or anysuper-16 camera. You can crop the image or use ETC mode, zoom in, or 3/2 aspect ratio. This is a very popular lens for filming. To use this lens with a c-mount adapter, simply unscrew by hand the rear silver ring. The c-mount is locked on with perfect collimation and ready to film! The item "MODIFIED' SCHNEIDER MACRO VARIOGON 1.8/12.5-75MM C-MOUNT LENS 16MM MOVIE CAMERA" is in sale since Tuesday, May 2, 2017. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses". The seller is "calkovsky-cinema-worldwide" and is located in Auburn, California. This item can be shipped worldwide.