This used Rokinon 12mm f2.0 High Speed Wide Angle Lens (Silver) is compatible with Sony e-mount cameras and has a maximum aperture of f/2. It has a manual focus type and is made of metal. The lens has a focal length of 12mm and is suitable for wide angle shots. It is also compatible with 67mm filters. The lens was manufactured in Korea in the 2010s and it's in great working condition.