Photographic developer
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In the processing of photographic films, plates and papers, a developer is a chemical solution that converts the latent image to a visible image. This may be a negative image, with the emulsion darken
Developer powder using genol-hydroquinone.
A black and white photographic print in a tray while being processed after exposure to light under a photographic enlarger. Typically three trays are used containing either developer, stop bath, or fixer, in that order. The print must then be rinsed in water to remove the fixer.
Photographic processing
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Photographic processing or photographic development is the chemical means by which photographic film or photographic paper is treated after photographic exposure to produce a negative or positive imag
Photographic developer
…In the processing of photographic films, plates and papers, a developer is a chemical solution that converts the latent image to a visible image. This may be a negative…
Black and white negative processing is the chemical means by which photographic film and paper is treated after photographic exposure to produce a negative or positive image. Photographic processing transforms the latent image into a visible image, makes this permanent and renders it insensitive to light.
A cut-away illustration of a typical light-trap tank used in small scale developing