Developing the film makes the image visible (as a negative - the parts that were exposed to the most light are the darkest, this is inverted in the printing process).Ĭolor film is coated with many layers of chemicals, with chemicals keyed to different colors in the different layers. When exposed to a very small amount of light - like the tiny amount that hits it when a photographer presses the camera’s shutter button - a subtle image, invisible to the naked eye, forms on the film. ![]() ![]() Color photo of the emir of Bukhara Sergey Prokudin Gorsky, 1911Īt a very, very basic level, this is how common photographic film works: film is thin plastic covered in a layer or layers of photosensitive chemicals.
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