Nikon D800E User Manual page 182

Copying White Balance from a Photograph
Follow the steps below to copy a value for white balance from an
existing photograph to a selected preset.
1
Select L (Preset
manual) for White
balance in the
shooting menu.
Press the G button and
select White balance in
the shooting menu.
Highlight Preset manual
and press 2.
2
Select a destination.
Highlight the destination
preset (d-1 to d-4) and press
the center of the multi selector.
3
Choose Select image.
r
Highlight Select image and
press 2.
158
G button