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  1. A salted paper print is a photographic print made from a sheet of paper that has been coated with a solution of sodium chloride (the chemical name for salt). It is dried and then coated with a solution of silver nitrate to make it sensitive to light.

  2. When photography appeared shortly before 1840, the metal-plate daguerreotype, invented in France, was first to achieve popularity. But the process simultaneously developed in England for capturing an image on a paper negative—from which many positives could be printed—provided the foundation on which photography would build for the next 150 ...

    • Roger Taylor, Larry J. Schaaf
    • Taylor, Roger and Schaaf, Larry
    • 2007
    • RAE2008 UoA63
  3. Jul 14, 2018 · In 1892, C. Vernon Boys (a regular correspondent of Mach’s) gave an illustrated talk at the Edinburgh Meeting of the British Association about his experiments showing a bullet piercing various objects – a sheet of cardboard, a plate of glass – using ‘instantaneous illumination’: a flash of light.

  4. www.vam.ac.uk › collections › william-henry-fox-talbotWilliam Henry Fox Talbot - V&A

    William Henry Fox Talbot was credited as the British inventor of photography. In 1834 he discovered how to make and fix images through the action of light and chemistry on paper. These 'negatives' could be used to make multiple prints and this process revolutionised image making.

    • 1834-1841 The Daguerrotype and The Calotype
    • 1841-1850 The Cyanotype, and Other Processes
    • 1851 The (Wet) Collodion Process
    • 1871 The Dry Plate Process
    • 1885 – 1887 Photographic Film

    The descriptions above do not indicate the complexity of the chemical processes. Many people with an interest in chemistry struggled with different combinations of chemicals to find practical methods of creating successful images and obtaining a positive image from the negative. In England, the first person to succeed in this whole process was Will...

    Others continued to try to find different methods of creating photographs. An important method known as the cyanotype was developed by Herschel, in 1842. The process uses a mixture of two chemicals, ferric ammonium citrate and potassium ferricyanide. The prints, which are blue in colour, can be fixed by washing in plain water. (There are variants o...

    This was apparently invented almost simultaneously by Frederick Scott Archer and Gustave Le Gray. This process used a prepared glass plate which, in the darkroom, would be coated with collodion (a highly flammable solution of nitrocellulose, ether, and alcohol). It was then made light-sensitive with further chemicals and before it could dry, was pl...

    Richard Leach Maddox invented the gelatin dry plate silver bromide process. This led to the invention of dry plate photography, which did not require the photographer to develop the plate immediately after exposure. This proved to be a highly successful process, which continued to be used into the 1920s.

    In 1885, George Eastman started manufacturing flexible, paper-based photographic film. Although convenient, it produced rather poor results. In 1887 Reverend Hannibal Goodwin filed a patent for celluloid photographic film. The patent was not granted until 1898. In the meantime, George Eastman had already started production of this type of film usin...

  5. Apr 16, 2013 · A highly polished silver surface on a copper plate was sensitised to light by exposing it to iodine fumes. After exposing the plate in a camera it was developed with mercury vapour. Richard Beard opened England’s first public photographic studio in March 1841 in London’s Regent Street, after buying the rights to be sole patentee of the ...

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  7. Early darkroom lighting was usually yellow or orange, as plates became faster in the dry-plate era and sensitive to a wider spectrum red lighting was used when developing negatives. Later, yellow light was used with printing papers and dark green for panchromatic plates.

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