Magazine
About us
Join
|
|
SWPP Home Magazine About us Join |
Term - Guide number |
| Guide number | SWPP Photographic Glossary | Thursday 27th January 2022 |
|
Guide numberIndicates 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 Contact SWPP |