Global Support for Professionals
If you find your eyes get tired after using the viewfinder for prolonged periods, select Off for Custom Setting d8 (Apply settings to live view). Viewfinder brightness and hue will be adjusted for ease of viewing rather than to reflect changes to white balance, Picture Controls, exposure compensation, and the like.
Because pictures taken with Off selected may not match the preview in the viewfinder, we recommend that you check the results after shooting. Note that in movie mode, the effects of changes to camera settings will always be visible in the display, regardless of the option selected for Custom Setting d8 (Apply settings to live view).