After a month-long online campaign to promote its launch, Pentax is finally unveiling the 645D medium format digital camera. This is the first digital version of the company's 645 medium format camera system. It features a 40 megapixel, 44 x 33 CCD sensor as well as a 921k dot 3.0-inch LCD. The camera is compatible with the existing 645 system lenses. Sadly, the camera will initially be available only in Japan. It will carry a suggested price of ¥850,000 (approximately US $9,400) and should be available in May. See More..