Term - Reciprocity law
|Reciprocity law||SWPP Photographic Glossary|
Tuesday 25th April 2017
States that exposure = intensity x time, where intensity is equal to the amount of light and time is equal to the time that amount of light is allowed to act upon the photographic emulsion.
Information provided by: SWPP
SWPP, 6 Bath St, Rhyl, LL18 3EB