The back of the Leica M Monochrom camera, the world's first digital camera exclusively for full-frame, 35mm black-and-white photography, at the "Leica - Das Wesentliche" (Leica - The Essential) event in Berlin May 10, 2012. The latest camera of the Leica M-System has an 18-megapixel monochrome image sensor with a sensitivity of ISO 32 to ISO 3200. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS)