Nikon F2S m42-k It records a 170 degree

It records a 170 degree image from corner to corner with all the circular distortion you'd expect from a fisheye

Outer thread of the mount is approx

5mm lens cap for the Leitz 5cm f2 Summitar lens (may also fit others

with case

Nikon F2S m42-k It records a 170 degreeNikon F2S chrome body in excellent condition. The F2 was Nikon's second and last fully mechanical professional 35mm SLR. Notable features include a 1 2000 top speed, interchangeable finders and focusing screens, full time mirror lockup, and timed long exposures out to an impressive ten seconds. This F2 is equipped with a DP 2 prism, using the Pre AI aperture linkage and LED meter readout. Shutter is accurate through its range, meter is spot on, and