Acetate base
Non inflammable base support for film emulsions which replaced the highly inflammable cellulose nitrate base.
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Film is merely an acetate base that has been coated with a light-sensitive emulsion. When a picture is taken, light (hopefully focused light) falls on the film in an amount determined by the lens aperture and camera's shutter duration.
the dangers of the nitrate film base being known practically since its development, it was used in virtually all major motion pictures prior to 1952, when Kodak completed a four year conversion program to the sole manufacturing of acetate base film ...
-Vinyl film is an emulsion coating on a polyvinyl chloride acetate base, with less shrinkage than conventional film bases.
-Viscose sponge is a synthetic sponge used to wipe surplus water off films before they are hung up to dry.
The base for APS film emulsions. Its a strong material that it accepts film emulsions evenly and, with a thickness of just 90 microns its 30% thinner than the acetate base used in conventional 35mm emulsions.
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Annealed polyethylene naphthalate-a polyester material used as the base on Advanced Photo System film; thinner, stronger and flatter than the acetate base traditionally used in consumer photographic roll films.
APO ...
 See also: Print, Photography, Base, Camera, Photograph
  
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