Leica 50mm f/2.5 Summarit-M Lens

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A Leica lens that Makes
Exceptional Quality Available

Leica 50mm f/2.5 Summarit-M Manual Focus Lens The Leica Summarit-M 50mm f/2.5 Lens is the normal standard rangefinder lens. This lens was conceived to provide first-rate Leica mechanical and optical usability, while positioned at a price point beneath today's M ASPH lenses. The maximum aperture is f/2.5, and by utilizing proven classical spherical lens specifications, these Leica lenses make exceptional quality available. As a result, these features create a extraordinarily compact design.

Brought up to date with "6-bit" coding, this lens allows the camera to identify the particular lens being used and to optically convert the information. The digital M camera can then choose to apply vignetting correction through the software as a "final stage" (for RAW images no changes are made, the mounted lens is merely recorded. Dec 15, 2010 ✓

Features

Produced and indentified "Made in Germany".

High quality, compact, fast, and lightweight.

The accepted "Leitz-Norm" font that was originally applied by Leitz Wetzlar throughout the 1960's, are used for number and letter engravings and tthe lens mount red button color is true to the original that was used on all lenses manufactured since the M mount was introduced throughout the 1970's.

"6-bit code" is included which permits the M8 digital camera to identify the lens is being mounted, and to also to record this information in metadata image format.

A shallow depth-of-field is created with the 9-bladed circular aperture that brings notice to the subject and creates background blur, making it perfect for weddings and portraits.

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Specifications
Overview
Lens stylePrime lens
Max Format Size 35mm FF  
Lens focal length50 mm  
Image stabilization No  
Camera mount Leica M  
Angle of view 47  
Aperture (lens diaphragm)
Largest aperture opening F2.5  
Smallest aperture opening F16.0  
Includes aperture ring Yes  
Aperture annotations Preset, with click-stops, half values available  
Optical
Total Elements 6  
Number of Groups 4  
Focusing
Minimum focus distance 0.70 m (27.56")  
Maximum magnification ratio 0.071 x  
Autofocus type No  
Full time manual focus Unknown  
Lens distance scale Yes  
Depth of field scale Yes  
Physical features
Overall weight230 g (0.51 lb)  
Lens diameter 52 mm (2.03")  
Overall length 33 mm (1.30")  
Construction materials metal barrel, metal mount  
Filter thread size 39 mm  
Lens hood included No  
Tripod collar included No  
Optional accessories Matched lens 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 50mm f/2.5 Summarit-M Manual Focus Lens

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