Term - Reciprocity failure
|Reciprocity failure||SWPP Photographic Glossary|
Friday 20th April 2018
It occurs in photographic emulsions when exposure times fall outside a films normal range. At these times an increase in exposure is required in addition to the assessed amount. This can be achieved either by increasing intensity or time.
Information provided by: SWPP
SWPP, 6 Bath St, Rhyl, LL18 3EB