Term - Infectious development
|Infectious development||SWPP and BPPA Photographic Glossary|
Tuesday 30th September 2014
The development action which occurs in processing "lith" materials. The oxidation of hydroquinone produces new and highly active reducing agents, semiquinones, in the presence of a low quantity of sodium sulfite. This results in a very high contrast image.
Information provided by: SWPP BPPA
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