M42 Soviet Manual lens Mir-1B 2.8 / 37mm Wide Angle for Zenith, Canon or you choice! In 1958, Mir-1 (under M39) received the Grand Prix at the World Exhibition in Brussels, and in 1959 Mir-1 was awarded the Diploma of the II degree of VDNKh of the USSR. The Lens is in Very Good Condition Glass is clean and clear, without fungus. The diaphragm-control ring turns smoothly and accurate. Aperture range 1:2.8 - 1:16. Angle of view: 60 deg. Focusing range: 0.7m to infinity.
Resolving capacity (lines in 1 mm) center/edge: 45/23.