WATER - DEVELOPING PHOTOGRAPHS.
water is used when developing photographs in the old way. Using chemicals to produce your films gives you such a different picture. I prefer the old technique, there is something so satisfying about producing your own pictures from start to finish, instead of just going to boots to develope them or even using a digital camera.
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There are entire books on the subject, but from a practical standpoint this is all you need to know: light gets reflected off surfaces and through the lens of a camera, past an open shutter, and falls onto a piece of plastic coated with layers of light-sensitive emulsion. Silver halide crystals in the emulsion react by forming clusters of silver ions, creating a latent image. When the film is submerged in developer, it transforms the silver ions into pure silver, leaving behind the halide crystals that weren’t struck by light. Those excess halide crystals are washed away with a second chemical called fixer, leaving metallic silver grains that are denser where the light was more intense during the exposure, producing a visible negative image."
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