This lens is a manual focus Fish Eye lens of superior quality for Canon EF mount.
Name: Zenit calls this the MC Zenitar-M2,8/16 Fisheye.
Focal Length: 16mm fisheye. It fills the frame of a film, FX or full-frame digital camera. It doesn't do all that much on smaller frame cameras because they only use the center of the image. See also Crop Factor.
Maximum Aperture: f/2.8.
Optics: 10 elements in 7 groups.
Diaphragm: 6 blade manual. Stops down to f/22 in half-stop clicks, which is a pain trying to count them without taking my eye from the finder.
Filter Size: Rear-mount M26.5 x 0.5mm thread.
Close Focus: 1' or 0.3m from the image plane (the back of the camera).
Size: 2.554" diameter x 1.954" extension from flange (64.87 x 49.63mm), measured maximums. The measured nominal diameter of the front engraved section is 62mm, too big for the 61mm Nikon fisheye cap.
Weight: 10.385 oz. (294.4 g), measured, naked.
In stock and ready to ship.Â Shipping cost R75 excluding 2% insurance.