This is a nice looking 13mm C Mount lens set at the hyperfocal distance of 12 feet. Some people will say it's stuck but it will move with very strong hands. Although set at 12 feet, it takes the best pictures from Infinity to about 6 feet at f-1.5. The aperture works great and the glass is very clear. It's been tested on a Nikon J1 camera at f1.5.
