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

Model: 11141

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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
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.

Photozone de.34752480
29 July 2011

The Summicron-M 50mm f/2 is an impressive lens. It shows very good resolution across the frame wide open, and excellent sharpness when stopped down to f/4 or f/5.6. Distortion is no issue at all. Vignetting is fairly pronounced wide open.

Lenstip com.34355424
27 October 2009

The build quality of Summicron-M 50 mm f/2.0, its small dimensions, tasteful body, combination with a small and discreet Leica M9 makes this equipment not only joyful for our senses, but also makes us want to take it in our hands and go to the city to take a few pictures.

  • +

    very high build quality,, excellent image quality at the center of the field of view,, after stopping down, good image quality at the center of the frame,, small chromatic aberration,, slight distortion,, very good work against bright the light,, high transmission.

  • -

    distinct coma,, large vignetting around the maximum aperture

User Reviews
18 December 2016

I have been shooting this lens for over 10yrs. I treated myself to a film MP tens yrs ago, and originally wanted to get a 50mm Summilux and a 28mm Elmarit. That was my budget. I ended up getting the 50mm & 28mm Summicron instead cause their was a waiting list and also read in Leica's own literature...

30 December 2014

A lens that is completely transparent and adds no distortion, color shifts, flare from edge to edge of the full frame.

  • +

    Consistent Output

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

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

14 March 2017

Wow I purchased this lens as my ultimate stop and one and only one solution. I sold my 50mm summilux and 35mm summicron to finance this baby. It arrived brand new, sealed in gray box. What a shock! There is a resistance on aperture ring between f2 and f2.8 as well as at f16.

23 February 2017

After reading lots of reviews, I finally made the decision to purchase this lens. But what I got is defective! I had the same problem with Michael: the aperture blades buckled from f2 to f16. Actually the blades can't form a round aperture.

5 February 2017

I would love to love this lens, which was "billed" as the perfect flawless lens, but sadly the lens I received was was defective from the start - the aperture blades buckled and would not open fully or flawless to f2.0.

22 June 2016

Scary sharp on the M240 and on the MMonochrom 246. Normally on screen you cannot tell a truly sharp lens but this one is noticeably better than other Leica lenses, which are almost all outstanding. The combination of the MM 246 and this lens yields stunning prints with amazing detail.

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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