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 F-1 film SLR body at the Kodak Federal Systems Division to create the first DSLR camera. The digital back monitored the camera body battery current to sync the image sensor exposure to the film body shutter. Digital images were stored on a tethered hard drive and processed for histogram feedback to the user. This first camera was created for the U.S. Government, and was followed by several other models intended for government use, and eventually the first commercial DSLR, launched by Kodak in 1991. In 1995, Nikon co-developed the Nikon E series with Fujifilm. The E series included the Nikon