Canon EOS 90D Advanced User's Manual page 225

[ O ] Custom White Balance
With custom white balance, you can manually set the white balance for
the specifi c light source of the shooting location. Make sure to perform this
procedure under the light source at the actual location of the shoot.
1
Shoot a white object.
Aim the camera at a plain white subject,

so that white fi lls the screen.
Focus manually and shoot with the

standard exposure set for the white
object.
You can use any of the white balance

settings.
2
Select [z: Custom White Balance].
3
Import the white balance data.
Press the < Y > < Z > keys to select the

image captured in step 1, then press
< 0 >.
Select [OK] to import the data.
4
Select [z: White balance].
5
Select the custom white balance.
Select [ O ].

White Balance Settings
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