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silver halide:

Also known as gelatin silver print, this refers to photographs mainly produced since the early 1870s using gelatin as a colloid. More recently the term has been applied within the photographic art market to differentiate photographs produced using traditional silver-based techniques from digital printing.

visualartcork

silver halide:

A compound containing silver, the crystals of which are the light-sensitive element in film.
ritzcamera

silver halide:

Light-sensitive compound used in film emulsions.
kodakcine

silver halide:

The light sensitive ingredient in photographic film and papers that is a combination of silver with bromine, fluorine, chlorine or iodine. Exposed silver halide particles form metallic silver that turns black when developed. Unexposed particles are dissolved by the fixer, leaving a permanent image.
ephotozine