1816 Photo sensitive paper used by NicÈphore NiÈpce in a camera obscura, it is not until 1826 that he fixes a permanent image. | 1834 Henry Fox Talbot creates the first permanent negative using paper soaked with silver chloride. | 1837 Louis Daguerre creates images on silver-plated copper, coated with silver iodide and "developed" with warmed mercury | 1841 Henry Fox Talbot patents his process as "calotype" | 1851 Frederick Scott Archer produces the first glass wet plate negative | 1853 Nadar 'Felix Toumachon' opens his portrait studio in Paris | 1854 Adolphe Disderi develops carte-de-visite photography in Paris a worldwide boom in portrait studios follows | 1855 stereoscopic photography begins. | 1861 Scottish physicist James Clerk- Maxwell demonstrates a color photography system involving three black and white photographs, each taken through a red, green, and blue filters. The photos were turned into lantern slides and projected in registration with the same color filters. This is the "color separation" method. | 1871 English doctor, Richard Leach Maddox, proposes the use of an emulsion of gelatin and silver bromide on a glass plate, the first dry plate negative. | 1878 Dry plates being manufactured commercially | 1880 George Eastman, sets up Eastman Dry Plate Company in Rochester, New York. First half-tone photograph appears in a daily newspaper, the New York Graphic. | 1889 Kodak introduce roll film camera. | 1900 Kodak Brownie box roll-film camera introduced. | 1906 introduction of panchromatic black and white film. | 1907 First commercial color film, the Autochrome plates, manufactured by Lumiere brothers in France. |1924 Leitz markets the "Leica", the first high quality 35mm camera. | 1931 Development of strobe photography by Harold Edgerton. | 1932 Ansel Adams, Imogen Cunningham, Willard Van Dyke, Edward Weston, et al, form Group f/64. Henri Cartier-Bresson buys a Leica and begins a 60-year photography career. George Eastman commits suicide aged 77. | 1934 Fuji Photo Film founded. | 1936 Development of Kodachrome.
| 1947 Henri Cartier-Bresson, Robert Capa, and David Seymour start the photographer-owned Magnum picture agency. | 1948 Hasselblad markets its first medium-format SLR. | 1949 East German Zeiss produces the first SLRwith an unreversed image in a pentaprism viewfinder. | 1959 Nikon F introduced. | 1963 First colour instant film developed by Polaroid. Nikonintroduce first purpose-built underwater camera Nikonos. | 1973 C-41 3 bath color negative process introduced, replacing 7 bath C-22 process. | 1985 Minolta markets the world's first autofocus SLR system. | 1987 Canon EOS system introduced. | 1990 Adobe Photoshop released. | 1991 Kodak DCS-100, first digital SLR, a modified Nikon F3. | 1999 Nikon D1 SLR, 2.74 megapixelfor Ä4000, first purpose built DSLR. | 2005 Canon produce EOS 5D first fullframe digital SLR, with a 24x36mm CMOS sensor.