Photographic term Guide number SWPPEverything you need to grow your Photography business.

SWPP Home
Magazine
About us
Join

Term - Guide number

Guide numberSWPP Photographic Glossary

Wednesday 15th July 2020  




SWPP

Glossary
 

Image Competition
Free entry for SWPP members.

Membership
Free Information Pack

Qualifications - An Overview

Guide number

Indicates the output, or power, of an electronic flash. You can use the guide number to work out the aperture or flash to subject distance by dividing either into the guide number. A photo term sometimes used to describe a flash factor, which provides a guide to correct exposure when using flash.



 

Information provided by: SWPP
More Photographic Terms

Contact SWPP
Copyright © SWPP All rights reserved.
06/11/2019 11:36:06