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Russar MR-2 20 mm f/5.6 Lens

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Russar MR-2 20 mm f/5.6 lens

Russar MR-2 20 mm f/5.6 lens

Russar MR-2 20 mm f/5.6 lens

Russar MR-2 20 mm f/5.6 lens

Russar MR-2 20 mm f/5.6 lens

Optical design

Russar MR-2 20 mm f/5.6 optical design

Format: 35mm rangefinder

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: M39 Leica screw-mount (LSM)

First year of production: 1958

Optical design: 6 elements in 4 groups

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Photos (4)

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Average price: $200

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
20mmf/5.6f/2270.54995/3.446/1.8

Additional information:

The Russar MR-2 20 mm f/5.6 (Russian: "Руссар МР-2") is an interchangeable lens for rangefinder cameras with the m39 Leica screw-mount (LSM). It is equipped with an iris aperture. The lens is coated.

The lens came complete with the VI-20 (rus. ВИ-20) viewfinder (also designed for the faster Sputnik-4 lens).

The primary usage of the MR-2 (rus. МР-2), the only series-produced commercial lens employing the Russar optical scheme, is panoramic, architecture and cramped room photography.

In 1958 at the World's Fair in Brussels the set of lenses, the Russar MR-2 20 mm f/5.6 being a part of it, was awarded the Grand Prix.

The original optical scheme of the Russar MR-2 20 mm f/5.6 was designed by M. M. Rusinov in 1953. It makes it possible to minimize a decrease of brightness, typical of wide-angle lenses, owing to the so-called aberrational vignetting. Many aerial photographic lenses employed this scheme.

The Russar design was over and over again borrowed by non-USSR manufacturers. The optical schemes of Zeiss Biogon-2, Schneider Super Angulon, Rodenstock Grandagon are Russar-based, as well.

By the way, in 1942-1943 M. M. Rusinov was a deputy chief designer of the KMZ (then plant No 393).

 


Links to online resources:
Posted by: nemiligor   Date of publication: 28.03.2011



Photos taken with this lens Russar MR-2 20 mm f/5.6:


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Autor: nemiligor
5 0 512

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Autor: nemiligor
5 0 758

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Autor: nemiligor
5 0 716

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Autor: nemiligor
0 0 713

Mechanical quality4.003
Optical quality4.673
Usability2.673
Pricing / Value2.673
Bokeh4.673
Overall lens rating
3.74

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