![]() This creates an invisible latent image in the emulsion, which can be chemically developed into a visible photograph. Instead, a very short exposure to the image formed by a camera lens is used to produce only a very slight chemical change, proportional to the amount of light absorbed by each crystal. The emulsion will gradually darken if left exposed to light, but the process is too slow and incomplete to be of any practical use. Film is typically segmented in frames, that give rise to separate photographs. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and resolution of the film. Photographic film is a strip or sheet of transparent film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals. JSTOR ( June 2020) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Photographic film" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification. ![]()
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