ABSTRACT
Processing film is relatively simple but it requires a consistent, controlled routine. The gelatin
of the emulsion absorbs liquid chemicals, which react with those within the film, differentiating
between exposed and unexposed parts of the image. Essentially the ‘latent image’ formed by the
action of light on the emulsion while in the camera is developed, changing its chemical make-up
into something more permanent, and then fixed and washed to make it no longer light-sensitive
and to remove the chemical by-products.