Grey Card app for iPhone and iPad

4.9 ( 1389 ratings )

Travel Photo & Video
Developer: simmogl

0.99 USD

Current version: 1, last update: 8 years ago
First release : 16 Jul 2010
App size: 40.42 Kb

To use the Grey Card app simply take a picture of the app in the same lighting your subject is (or was) in. Then you can either use the resulting picture as the basis for a custom white balance setting, or you can use the Grey Card picture during post processing for a custom white balance.