Photography in the United States product introduced by George Eastman in 1884: a flexible, gelatin-coated paper, followed closely by a holder for a 24-frame roll. Soon after this, Eastman introduced Eastman American film, which featured a thin gelatin layer that was removed from the paper backing after development for additional clarity in making prints. In 1888, Eastman's company issued the first easy-to-use, lightweight Kodak camera. It was priced at $25, loaded with a hundred frames, and was almost instantly popular. When the user had used up all 100 exposures, he or she would simply mail the camera back to Kodak, where the used film was
Digital single-lens reflex camera rapid development of digital photography. For their contribution to digital photography Boyle and Smith were awarded the Nobel Prize for Physics in 2009. In 1975 Kodak engineer Steven Sasson invented the first digital still camera, which used a Fairchild 100×100 pixel CCD. On August 25, 1981 Sony unveiled a prototype of the Sony Mavica. This camera was an analog electronic camera that featured interchangeable lenses and a SLR viewfinder. In 1986, the Kodak Microelectronics Technology Division developed a 1.3 MP CCD image sensor, the first with more than 1 million pixels. In 1987, this sensor was integrated with a Canon