Voigtlander Color-Skopar 21mm f/4.0 P Pancake Lens

Ultra-compact, plus wide-angle Voigtlander 21mm f/4.0 P Color-Skopar Pancake Lens. Engineered for to be mounted on Bessa R4M or Bessa R4A cameras. It also features a VM mount, for attaching to any camera that employs an Leica M mount. It's especially good for mounting on the R4M and R4A, as these cameras come with integrated bright frames specifically for 21mm, making an external viewfinder unnecessary.

The lens provides exceptionally close focusing capability, getting in as near as 1.5' (0.5 m). Additionally the focusing lever allows you go from the minimum focusing distance all the way to infinity in as little as a rotation of ninety degrees. Aperture are selections are made with a that is click-stop. A 9-bladed, circular aperture creates smooth and natural interpretation of defocused photographs, along with near circular shapes of light point sources. and there's a first-rate scale for depth of field. May 13, 2011  

• Compact Pancake Lens -1.0" / 25mm Long
• VM Lens Mount
• For Select Bessa / Leica M Mount Cameras
• Minimum Focus Distance - 1.5'/0.5 m
• Depth of Field/Aperture Scales on Barrel

• Voigtlander Color-Skopar 21mm f/4.0 P Pancake Lens
• Front & Rear Caps
• 1-Year Warranty

M Mount Adapters
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.