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  2. Hand-colouring of photographs - Wikipedia

    en.wikipedia.org/wiki/Hand-colouring_of_photographs

    Watercolour paint used in photographic hand-colouring consists of four ingredients: pigments (natural or synthetic), a binder (traditionally arabic gum), additives to improve plasticity (such as glycerine), and a solvent to dilute the paint (i.e. water) that evaporates when the paint dries. The paint is typically applied to prints using a soft ...

  3. Kirlian photography - Wikipedia

    en.wikipedia.org/wiki/Kirlian_photography

    Kirlian photograph of two coins. Kirlian photography is a collection of photographic techniques used to capture the phenomenon of electrical coronal discharges.It is named after Soviet scientist Semyon Kirlian, who, in 1939, accidentally discovered that if an object on a photographic plate is connected to a high-voltage source, an image is produced on the photographic plate. [1]

  4. Glossary of graffiti - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_graffiti

    The paint quality is runnier and translucent in comparison to graffiti specialty brands. Sherwin Williams, Krylon's parent company, has dominated a significant portion of the paint market and many retail outlets stock only Krylon paints. For this reason, Krylon is categorized into three groups. 360 krylon – from the "Ez touch 360 dial control ...

  5. Photographic emulsion - Wikipedia

    en.wikipedia.org/wiki/Photographic_emulsion

    Photographic emulsion is a light-sensitive colloid used in film-based photography. Most commonly, in silver-gelatin photography, it consists of silver halide crystals dispersed in gelatin. The emulsion is usually coated onto a substrate of glass, films (of cellulose nitrate, cellulose acetate or polyester), paper, or fabric.

  6. Photo-crayotype - Wikipedia

    en.wikipedia.org/wiki/Photo-crayotype

    From its inception in 1839, photographers had been using pigments to hand colour photographs. [1] The most common method used was the addition of colour to the finished daguerreotype, ambrotype or print. But by the 1850s there were two well-established processes based on using photographs as the base layer over which pigments were applied.

  7. List of photographic processes - Wikipedia

    en.wikipedia.org/wiki/List_of_photographic_processes

    Agfacolor. Ap-41 process (pre-1978 Agfa color slides; 1978-1983 was a transition period when Agfa slowly changed their color slide films from AP-41 to E6); Anthotype; Autochrome Lumière, 1903

  8. Photographic processing - Wikipedia

    en.wikipedia.org/wiki/Photographic_processing

    In graphic art film, also called lithographic film which is a special type of black and white film used for converting images into halftone images for offset printing, a developer containing methol-hydroquinone and sulfite stabilizers may be used. Exposed silver halide oxidizes the hydroquinone, which then oxidizes a nucleating agent in the ...

  9. Gum printing - Wikipedia

    en.wikipedia.org/wiki/Gum_printing

    In 1858, John Pouncy used colored pigment with gum arabic to create the first color images. Low density photographic negatives of the same size as the final image are used for exposing the print. No enlarger is used, but instead, a contact printing frame or vacuum exposure frame is used with an ultraviolet light source such as a mercury vapor ...