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 High-Speed Infrared at a street price of around $12 a roll at US mail order outlets. Despite the discontinuance of HIE, other newer infrared sensitive emulsions from Efke, Rollei, and Ilford are still available, but have differing sensitivity and specifications from the long-established HIE. With the discontinuance of HIE, Efke's IR820 film has become the only IR film on the market with good sensitivity beyond 750 nm. Kodak High-Speed Infrared Kodak High-Speed Infrared film, also known as Kodak HIE, was a popular black-and-white infrared photographic film from Kodak. The film is sensitive to the visible light spectrum (with decreased green sensitivity), infrared