Term - Reciprocity law

Reciprocity law SWPP Photographic Glossary

Monday 17th November 2025  

Aaduki Multimedia Insurance - Insurance for Photographers



SWPP

Glossary
 

Image Competition
Free entry for SWPP members.

Membership
Free Information Pack

Qualifications - An Overview

Reciprocity law

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
More Photographic Terms

Contact SWPP

Trustpilot


Update cookies preferences