This is the help for FoCal 5 and the FoCal Mobile 3.0 apps. For FoCal 6, see the current help.

Test / Utility Information

Corner Brightness Profile – MultiTest

Help page 1009FoCal 5

(See Chart Features for general chart features - changing scales, copying to clipboard etc)

The Corner Brightness Profile chart shows the relative change in brightness of the corners of the full-frame image through the test.

Key:

  • Red line – top-left corner brightness profile
  • Orange line – top-right corner brightness profile
  • Yellow line – bottom-left corner brightness profile
  • Green line – bottom-right corner brightness profile

Interpretation

See Corner Brightness Profile – Aperture Sharpness for a detailed explanation.