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1. historicengland.org.uk › images-books › archivePhotographic Processes Illustrated in the Historic England ...

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   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.

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3. www.metmuseum.org › 2007 › impressed-by-lightImpressed by Light | The Metropolitan Museum of Art

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   This exhibition is the first major exhibition to survey British calotypes—works of exceptional beauty and rarity which are made from paper negatives and are among the earliest forays into the medium of photography.

4. academic.oup.com › jvc › articleVictorian Flash | Journal of Victorian Culture - Oxford Academic

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   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.

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6. www.ypsyork.org › resources › articlesThe calotype and its place in the development of photography

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   • 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...

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   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...

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   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...

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   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.

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   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...

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7. www.nms.ac.uk › discover-catalogue › inventors-ofInventors of photography: Exploring Victorian photographic ...

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   A glass plate is coated with the wet collodion solution containing light-sensitive silver salts and exposed whilst the plate is still wet. Photographs have to be taken within 15 minutes of coating the plate so a portable dark room is needed.

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8. www.earlyphotography.co.uk › site › entry_D5-0Darkroom Lamps - Antique and Vintage Cameras - Early Photography

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   Paper between glass covers. The Wratten Safelight incorporates a cooling system where air is brought into the lamp and passes between the filter and a sheet of clear glass before reaching the lamp and chimney.

9. People also ask

   What type of light was used in photography?

   • Later, yellow light was used with printing papers and dark green for panchromatic plates. The filter could be made of glass, fabric, acetate, paper mounted between glass or liquid (potassium bichromate). Folding lamps were advertised for use when travelling. Cyclopedia of Photography, pp. 61, 163.

   Darkroom Lamps - Antique and Vintage Cameras - Early Photography

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   What is a salted paper print?

   • Back to contents 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.

   A Century of Historic Photographic Types - Historic England

   historicengland.org.uk/images-books/archive/collections/photographs/historic-photographic-processes/

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   How long does it take to photograph a glass plate?

   • A glass plate is coated with the wet collodion solution containing light-sensitive silver salts and exposed whilst the plate is still wet. Photographs have to be taken within 15 minutes of coating the plate so a portable dark room is needed. However, the exposure time is less than for daguerreotypes and calotypes.

   Inventors of photography: Exploring Victorian photographic techniques

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   How was light produced?

   • The amount of light generated was determined by the number of grains used. Flash powder, used accurately, allowed for a great deal of control over the amount of light that was produced: moreover, if one was lighting a banquet, say, one could, by the end of the century, set it up in troughs, and ignite it by means of an electric circuit.

   Victorian Flash | Journal of Victorian Culture | Oxford Academic

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   What was a wooden camera used for?

   • The wooden camera, which sat on a tripod, was large and cumbersome. She used the most common process at the time, producing albumen prints from wet collodion glass negatives. The process required a glass plate (approximately 12 x 10 inch) to be coated with photosensitive chemicals in a darkroom and exposed in the camera when still damp.

   Julia Margaret Cameron's working methods | V&A

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   What was photography used for in 1844?

   • but its most important use was in reproducing architectural and technical drawings – the ‘blueprints’ that continued to be used till modern digital methods were developed. Other methods of photography continued to be investigated, and some were discussed at the 1844 BA conference.

   The calotype and its place in the development of photography

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10. www.vam.ac.uk › articles › julia-margaret-cameronsJulia Margaret Cameron's working methods - V&A

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    What makes Julia Margaret Cameron's work so highly regarded today? Discover her working methods and the personal touches that make her style of portrait photography so unique.