Nikon D800 - Manual (Page 351)

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Acquire reference data for the Image Dust Off option in
Capture NX 2 (available separately; for more information, see the
Capture NX 2 manual).
Image 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
Choose a start option.
Highlight one of the
following options and
press
J. To exit without
acquiring image dust off
data, press
G.
• Start: The message shown
at right will be displayed and “rEF” will
appear in the viewfinder and control
panel displays.
• Clean sensor and then start: Select this
option to clean the image sensor
before starting. The message shown at
right will be displayed and “rEF” will
appear in the viewfinder and control
panel displays when cleaning is
complete.
Image Dust Off Ref Photo
G button ➜ B setup menu
D
Image Sensor Cleaning
Dust off reference data recorded before image sensor cleaning is
performed can not be used with photographs taken after image
sensor cleaning is performed. Select Clean image sensor and
then start only if the dust off reference data will not be used with
existing photographs.
J button