Leica 90mm f/2.0 Summicron M Lens

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A Quick, High Performance Lens

Leica 90mm f/2.0 APO Summicron M Aspherical Manual Focus Lens A quick, high-performance lens newly designed for portraits, photojournalism,, and quick snapshots whenever you need to capture inconspicuously remote photos. Its fast speed allows relatively quick shutter speeds that foil blurred images created by camera shake. It has an aspherical element lens that includes Apochromatic correction, it pioneers new levels in the field of telephoto short lenses it also features a built-in lens hood that slides. 

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).  Read more. May 12, 2011 ✓

Features

Includes "6-bit code" which allows the digital M8 camera to identify which lens is being used, and also to store this information in image metadata

Apochromatic high-speed short telephoto lens

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Specifications
Overview
Lens stylePrime lens
Max Format Size 35mm FF  
Lens focal length90 mm  
Stabilization type No  
Camera mount Leica M  
Angle of view 27 Degrees  
Aperture (lens diaphragm)
Largest aperture opening F2.0  
Smallest aperture opening F16.0  
Includes aperture ring Yes  
Total diaphragm blades 11  
Aperture annotations with clickstops (including half values), manual diaphragm  
Optical
Total Elements 5  
Number of Groups 5  
Coatings / special elements 1 aspherical element 2 high refraction glass elements  
Focusing
Minimum focus distance 1.00 m (39.37")  
Maximum magnification ratio 0.11 x  
Autofocus type No  
Full time manual focus Unknown  
Lens distance scale Yes  
Depth of field scale Yes  
Physical features
Overall weight500 g (1.10 lb)  
Lens diameter 64 mm (2.52")  
Overall length 78 mm (3.07")  
Filter thread size 55 mm  
Lens hood included Yes  
Tripod collar included No  
Notes built-in telescopic hood

Accessories

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.

Images

Leica 90mm f/2.0 APO Summicron M Aspherical Manual Focus Lens

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