Description: The long-focus high-aperture lens Tair-11 is in good condition. Issued at the Krasnogorsk Mechanical Plant in 1961 (No. 018933). The optical design of the lens is 4 elements in 3 groups. The working distance is 45.2 mm. The full stroke of the helicoid is about 350 degrees. The travel is long, which is very handy when focusing at portrait distances. The diaphragm has 20 blades. At any aperture value, they form perfectly even circles. The lens gives a very beautiful picture, sharp from the widest aperture and at the same time plasticity. The background blur is smooth, soft and airy.
Specifications: Type: Constant focal length (fixed) Mount: M42 Focus: Manual Focus Optical design: 4 elements in 3 groups Focal length: 133mm Aperture: f / 2.8 - f / 22 Petal diaphragm: 20 Diameter of filter thread: 49mm Weight: 650gr Year of production: 1961 Plant: KMZ
Condition: Good condition! No corrosion on the housing. Lenses clean without scratches, dust and fungus. The mechanics are working properly.