Mamiya has added the DM40 to its line of professional large-sensor SLR cameras. The camera has a 40-megapixel sensor and two user-selectable shutter systems: leaf or focal plane.

For bright daylight shots, users can use lenses equipped with leaf shutter planes inside the lens that more quickly sync with the flash and better compensate for ambient light. In this mode, the DM40 is compatible with 55mm, 80mm and 110mm lenses, which deliver a maximum flash sync speed of up to 1/1600 second. For more conventional situations, photographers can choose any one of the other 15 Mamiya optics, ranging from 28mm to 300mm APO, designed for use with the focal-plane shutter system.

The Mamiya DM40 DSLR kit, including the Mamiya 80mm f/2.8 D lens, retails for $21,900, and the digital back retails for $19,990.