While working as a bank clerk, George Eastman developed an interest in photography. He improved the process for making photographic plates, which he soon came to manufacture. In 1884, he introduced flexible film. His Kodak box camera first was produced in 1888, and Eastman began to market it on a mass basis for amateur photographers. Eastman expended considerable funds for research, which let to further innovations in cameras and equipment, including pocket cameras and daylight -loading film.