Wide Angle 21mm f/1.4 Leica Summilux-M Lens

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The Lens Allows For Highly Dramatic Impressions

Leica 21mm f/1.4 Summilux-M Aspherical Manual Focus Lens The 21mm f/1.4 Leica Summilux-M Aspherical functions as a super-wide lens engineered for fast performance. The brilliant f/1.4 aperture produces an exceptionally shallow depth of field, and at a middle f/stop, it's focal reach is so terrific that complete intact scenes can be sharply reproduced. As a consequence of the floating element design, exceptionally high resolution is possible even in close-up spaces.

The 21mm f/1.4 Leica Summilux-M Aspherical works as an all inclusive focal point lens designed for quick execution. The splendid f/1.4 gap delivers an uncommonly shallow field depth, and at a center f/stop, it's central compass is terrific to the point that complete in place scenes can be forcefully replicated. As an outcome of the drifting component plan, incredibly high determination is conceivable even in close-up spaces.

The focal point takes into account profoundly sensational impressions, for example, momentous closer views, unequivocally reducing foundations with a wide skyline. Utilizing this focal point, the centering in addition to metering are executed by investigating the camera's viewfinder, despite the fact that the genuine surrounding is affirmed with an appended extra viewfinder mounted on the camera hot-shoe.

A f/1.4 focal point is not for the most part as effective as the same brand f/1.8 or f/2 focal points, notwithstanding when both are stopped down to f/5.6. the focal point with the more extensive opening is heaver and more costly, so don't pick it as your standard unless you are arranging a lot of photography poor light conditions. There' a lot of purposes behind utilizing a wide aperture, however abstain from purchasing a focal point with a gap more extensive than you require.

Leica lens new updated "6-bit" coding

This Leica lens features the new updated "6-bit" coding, that allows the M digital camera to optically read this information and then identify the lens being mounted. Optionally the M camera can then apply a software based "last stage" vignetting adjustment (for images captured in RAW, the lens mounted is simply recorded, with no changes made). Apr 20, 2011 Read more.  May 10, 2011 ✓


    Compact wide-angle lens with 2 aspherical elements provide excellent optical performance

    Includes "6-bit code" which allows digital M-series cameras to identify which lens is being used, and also to store this information in image metadata

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Lens stylePrime lens  
Max Format Size 35mm FF  
Lens focal length21 mm  
Stabilization type No  
Camera mount Leica M  
Angle of view 92  
Aperture (lens diaphragm)
Largest aperture opening F1.4  
Smallest aperture opening F16.0  
Includes aperture ring Yes  
Aperture annotations Detents at half stop increments  
Total Elements 10  
Number of Groups 8  
Coatings / special elements 2 aspherical elements 5 anomolous dispersion elements  
Minimum focus distance 0.70 m (27.56")  
Maximum magnification ratio 0.03 x  
Autofocus type No  
Full time manual focus N/A  
Focusing method Extending front  
Focus notes Floating focus system  
Lens distance scale Yes  
Depth of field scale Yes  
Physical features
Overall weight580 g (1.28 lb)  
Lens diameter 70 mm (2.74")  
Overall length 66 mm (2.60")  
Sealing No  
Lens color Black  
Filter annotations Series Filter VIII in lens hood  
Lens hood included Yes  
Tripod collar included No


M Mount AdaptersLeica Four Thirds Adapter
The Leica M mount was introduced in 1954 at the same time as the Leica M3. It's been the mount of choice on every Leica M series thru the present day Leica M7 film camera and Leica M9 digital camera and Lenses.

The M Mount was also the mount used for Minolta's CLE rangefinder, on the Konica Hexar RF, on the later versions of the Voigtlander Bessa family and Lenses, the mount for the Rollei 35RF, also quite recently on the newest Zeiss Ikon Rangefinder and Lenses..

Benefits of Lens adapters is versatility, and saving money with the continued use of the preferred lenses you already own.

Drawbacks of lens adapters is the inconvenience, no electronic connection between the adapted lens and your camera body A couple of factors are necessary for a lens adapter to work properly. First, the camera body "lens registration" space or the expanse between the mount of the lens to the sensor or film surface. Two, the "throat size" of the mount or the mount diameter. An adapter flanked by the body of the camera and a lens from different brands, this registration distance of the adapted lens must be larger than the registration distance on the body; plus the lenses throat-size must be less than the throat size on the body mount. M lenses can be adapted to Canon EOS, Nikon, Micro Four Thirds, and Sony Nex Cameras.


Leica 21mm 1.4 summilux aspherical, February 5, 2010

By P. Halperin (NY, USA)

I have been working with this lens for only 1 week on an M9. It is without doubt one of the finest I have ever used. At f1.4, central image is extremely well detailed even at the minimum focusing distance of 0.7 meters, thanks to the floating elements. The corners are very slightly softer at 1.4 but more than able to render sufficient detail, and of course there is noticeable vignetting wide open. Stopping down yields fantastically crisp, 3 dimensional quality with beautiful tonality, corners to corners. It has a "just right" degree of contrast, not too much to clip highlights or shadows. Form f4 down, this lens is probably the finest quality 21mm lens made for the 35mm camera. At 1.4-2, it's the only 21mm of it's kind. the ability to achieve selective separation of subject and foreground and background yields a totally unique image at 21mm. Ridiculously expensive, and that good a lens. Lastly, for an external finder, I highly recommend the Zeiss 21mm finder which is gorgeous to look through.


Leica 21mm f/1.4 Summilux-M Aspherical Manual Focus Lens

Leica 21mm f/1.4 Summilux-M

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Wide Angle 21mm f/1.4 Leica Summilux-M Lens Reviewed by Gene Wright on . Rating: 4.5