Leica APO-Summicron-M 50mm f/2.0 ASPH Lens

Model #11141

USA Version
Leica 11141 1
Leica 11141 1
Leica 11141 2
Leica 11141 3
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General Information

Reproduction Ratio Max.: Approx. 1:11.3
Focal Length 50 mm
Angle of View Diagonal: 47°
Horizontal: 40°
Vertical: 27°
With Leica M8 models:
Diagonal: 36°
Horizontal: 30°
Vertical: 20°
Elements/Groups 8 elements in 5 groups
Entrance Position of entrance pupil from bayonet flange: 0.96" (24.4 mm)
Focus Range 2.3' (0.7 m) - infinity
Scales Combined meter / graduation
Smallest Object Field Approx. 10.9 x 16.4" (277 x 416 mm)
With Leica M8 models: 8.0 x 12" (203 x 305 mm)
Iris Blades 11
Aperture f/2.0 - f/16
Prefix with click-stops, half steps
Mount Type Leica M quick-change bayonet
Lens Hood Built-in, extendable by rotating
Filter Mount Female thread for screw-on E39 filters, non-rotating
Dimensions (Diam. x L) Approx. 2.1 x 1.9" (53 x 47 mm)
Weight Approx. 0.66 lb (0.30 kg)
Expert Reviews
19 June 2014

If a visitor from another planet arrived on Earth and asked to see the perfect specimen of what a digital camera and lens should look like, this combination might be the best choice. In terms of design and construction, fit and feel, the Leica M with 50mm APO Summicron is nearly perfect.

Ken rockwell.34354950
21 January 2014

This version also works perfectly with all LEICA M kameras, including the newest LEICA M9 digital, with the use of a simple adapter ring . Focus, metering, and everything is exactly as if it were an M lens.

Steve huff photos.32834344
1 February 2010

It took me a while but now that I own and use this lens on an almost daily basis I have to say it may be my favorite all around lens for the M9 replacing the 35 Summicron but I also adore the 35.

User Reviews
B h photo.32817553
18 May 2015

I traditionally have been a Canon DSLR user. With my move over the last couple of years to more manual lenses (typically the more recent Zeiss offerings on the Canon mount) and a desire to find high quality small systems I can take traveling, my road led me to Leica.

  • +

    Consistent Output, Easily Interchangeable, Lightweight, Nice Bokeh, Optical quality

  • -


16 August 2015

This is heralded as the most optically perfect lens ever made nd has tested as such in the lab. But, the proof is in the real world across a broad spectrum of cameras. I have shot this lens on the M246, M240, Mono 240, M7, and M6TTL in color and b&w.

5 February 2013

the lens is great - size, construction, aperature, feel, built in lens hood, bokeh. however the lens flare is just too weird with big white blotches or amoeba like spot. I don't mind flare if you can expect it and work with it but when it comes in randomly and obtrusively then it becomes a...

  • +

    Durable, Nice Bokeh, Rugged, Strong Construction

  • -

    Flare Not The Good Kind

Review us shopping com.33655990
17 October 2013

1979's Summicron 50 has aged very well and remains a far better lens than most of us will ever want or need.

  • +

    Outstanding sharpness, no distortion, exquisite build, MUCH cheaper than 50 APO or Lux.

  • -

    Bokeh can be unpredictable, expensive

Photography review.32822891
12 June 2009

I had used this lens when I had a M6. I have to say while a great lens, better than any Japanese SLR lens, it did not offer the magical "Glow" I have read so much about. I have an old 40/2 Summicron for a CL that I liked better.

  • +

    Excellend lens, good bokeh, sharp

  • -

    A touch flat when compared to Zeiss glass,, Not legenday sharp as some claim

Product Highlights
  • 50mm Focal Length
  • Aperture: f/2.0 - f/16
  • No Image Degradation At f/5.6
  • Angle of View: 47 / 40 / 27 Degrees
  • 8 Elements In 5 Groups
  • Rear Group Comprises Floating Element
  • Focus Range: 2.3' - Infinity
  • Max. Reproduction Ratio: 1:11.3
  • Leica M Quick-Change Bayonet Mount
Average Expert Score
Average User Score
In The Box
  • Leica APO-Summicron-M 50mm f/2 ASPH Lens (Black)
  • Metal Cap For APO-Summicron-M 50mm f/2.0 ASPH Lens
  • Rear Lens Cap
  • Leather Case
  • Limited 3-Year Warranty
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