Leica Summicron-M 50 mm f/ 2 Lens

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Optical design

Format: 35mm rangefinder

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: Leica M, M39 Leica screw-mount (LSM)

First year of production: 1979

Last year of production: 2012

Optical design: 6 elements in 4 groups, Double Gauss

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Specifications:

Focal length	Max. aperture	Min. aperture	Blades	Min. Focus (m.)	Filter Ø (mm.)	Weight (gr/oz)	Length (mm/in)
50mm	f/2.0	f/16	8	0.7	39	335/11,8	43/1,7

Additional information:

The Leica Summicron-M 50 mm f/2 is a normal fast prime lens for 35 mm Leica M rangefinder cameras.

The lens is compatible with any Leica camera from M3 (1954) onwards. Concerning sharpness it is one of the best 50 mm cameras . Price: from $2,000 (new) to 1,100 (used) The lens came in several versions but with the same optical scheme:

1979-1994 Type 4, 195 g, Photo 5
1994-2012 Type 5, 242/335 g, built-in hood
1999 LSM (М39), 325 g, silver, minimum focusing distance - 1 m

Type 4 and Type 5's optical schemes are identical, but different from that of Type 3. The optical formula may vary from one source to another - either 6/5 or 6/4.

A small lot of lenses with a screw-threaded mount was released in 1999. In 2012 the new APO Summicron-M 2/50 mm Asph lens was introduced.

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Posted by: dv Date of publication: 06.03.2013

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Mechanical quality	5.00	7
Optical quality	4.85	7
Usability	4.57	7
Pricing / Value	3.72	7
Bokeh	4.29	7
Overall lens rating	4.49

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