Nikon D3, User Manual, Page: 379 / 476

353
U
Dust off Ref Photo
Acquire reference data for the Image Dust Off option in
Capture NX 2 (available separately; for more information, see the
software manual).
[Dust off ref photo] is available only when a CPU lens is mounted
on the camera. A non-DX lens with a focal length of at least 50 mm
is recommended. When using a zoom lens, zoom all the way in.
1
Select [Start].
Highlight [Start] and press J .
The message shown at right will be
displayed and “rEF” will appear in the
viewfinder and top control panel. To exit
without acquiring image dust off data,
press
G
.
2
Frame a featureless white object in the viewfinder.
With the lens about ten centimeters (four inches) from a well-
lit, featureless white object, frame the object so that it fills the
viewfinder and then press the shutter-release button halfway.
In autofocus mode, focus will automatically be set to infinity;
in manual focus mode, set focus to infinity manually.