Roll film of Peter's camera. David Henderson Houston (born June 14, 1841; died May 6, 1906), originally from Cambria, Wisconsin, patented the first holders for flexible roll film. Houston moved to Hunter in Dakota Territory in 1880. He was issued an 1881 patent for a roll film holder which he licensed to George Eastman (it was used in Eastman's Kodak 1888 box camera). Houston sold the patent (and an 1886 revision) outright to Eastman for $5000 in 1889. Houston continued developing the camera, creating 21 patents for cameras or camera parts between 1881 and 1902. In 1912 his estate transferred the remainder
Kodak DC Series Kodak DC Series Kodak was a pioneer in the development of digital cameras. The DC series was Kodak's consumer-grade line of digital cameras as distinct from the more expensive professional Kodak DCS series. Cameras in the DC series were manufactured and sold during the mid-to-late 1990s and early 2000s. Some were branded as "Digital Science". Most of these early digital cameras supported RS-232 serial port connections because USB hardware was not widely available before 1998. The DC series was superseded by the Kodak Easy Share camera line. The Kodak DC20 was an early digital camera released by Kodak in 1996.