

- 50MM SUMMICRON VERSION VERSION 2 KEN ROCKWELL SERIAL NUMBERS
- 50MM SUMMICRON VERSION VERSION 2 KEN ROCKWELL MANUAL
Serial numbers compiled from known lenses and Puts Pocket Pod. Summicron-M f= 5 cm 1:2 (M-titan+black+silver)

Filter mount/Lens hood - Internal thread for screw-in filters size E39 / built-in, telescopic.The Summicron (which is f/2) is the sharpest lens in the Leitz M-mount line-up. One thing to keep in mind is that all else being equal, a slower lens will be sharper. Scales - Combined meter/feet graduation I own several 50mms: X-Fujinon 50mm f/1.6, Canon EF 50mm f/1.4, Leitz Summicron-M 50mm f/2, and some others.Position of entrance pupil - 25.1 mm (related to the first lens surface in light direction).Angle of view (diagonal, horizontal, vertical) - 47°, 40°, 27°.Smallest object field/Largest reproduction ratio - 277 mm x 416 mm / 1:11.5.
50MM SUMMICRON VERSION VERSION 2 KEN ROCKWELL MANUAL
Aperture range - f/2-f/16 - with clickstops (including half values), 8 & 10-blade manual diaphragm.

