Culture · 6 pages · 12 min
Black-and-white film collapses wavelengths into gray, while color film keeps separate bands as dyes.
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Black-and-white film turns wavelengths into one scale of silver density, following what its emulsion can register. Color film records in separate layers, each tuned to a band of the spectrum and later turned into dye, so the two do not capture one picture and then keep or drop the color. The opening covers one silver scale versus dye layers, filters rewrite the gray, and ortho film and red.
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