Canon EOS 1D Mark II N Instruction Manual page 66

3 Custom White Balance
If an image was captured while the Picture Style was set to [Monochrome]
(p.57), it cannot be selected in step 3.
Instead of a white object, an 18% gray card (commercially available) can
produce a more accurate white balance.
66
4
Import the white balance data.
Hold down the <
turn the <
Then let go of the <
The image's white balance data will
be imported.
5 O
Select <
Hold down the <
5
the < > dial to select <
let go of the <
The custom white balance will be set.
X
> button and
5
> dial to select [OK].
X
>.
B
> button and turn
O
B
> button.
> button.
>. Then