To Adjust the White Shading

You will need an HD waveform monitor and a very even light source.

The white shading is the adjustment of the individual red, green, and blue color channels in the camera to compensate for uneven color distribution across an image. Each lens and image sensor have their own characteristics that need to be compensated for to produce a consistent color distribution.

White shading is measured both horizontally and vertically across the image.

White shading is measured vertically across the image.

Tip: If you notice flickering on the monitor, this can be the result of fluorescent or mercury lighting.
  1. Press MENU and select MAINTENANCE > SHUTTER > SHUTTER and select OFF.
  2. Press MENU and select COLOR > MASTER GAIN > PRESET and select 0dB.
  3. Press MENU and select MAINTENANCE > WHT SHADING > EXTENDER and select OFF.
  4. Press MENU and select MAINTENANCE > WHT SHADING > H SHADING and use the RGB settings to adjust each color channel until they are equal in the waveform monitor. Press MENU and select MAINTENANCE > WHT SHADING and use the RGB settings to adjust each color channel until they are equal in the waveform monitor.
  5. Repeat these last steps for the V SHADING.
  6. Navigate back to the WHT SHADINGmenu.
  7. Select WHT SHADING and press the R button for 1 second.

    Boxes will appear on the viewfinder and flash, indicating that the automatic white shading is being performed.

  8. If present, turn the extender on and repeat the procedure.