Adams did his work on film and printed his images on photo-sensitive paper. The images on each substance came to life through wet processing in a darkroom. But those film products are rapidly dying out. Eastman-Kodak, the former venerable industry leader in all types of film, paper and processing-chemical production has been forced to completely regroup and position itself in "the digital world." While Kodak and a few other manufacturers, particularly in the foreign markets, continue to produce film on a limited basis, the digital-imaging giants, such as Nikon, Canon, Sony, Olympus, Panasonic, Sigma and Leica — move ahead with digital advances at the speed of an Indianapolis race car. Competition drives research and development.