Nikon D3000 - Manual (Page 147)

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g
Acquire reference data for the Image Dust Off option in Capture NX 2 (available
separately; for more information, see the Capture NX 2 manual).
Dust off ref photo is available only when a CPU lens is mounted on the camera. A
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.
• Clean sensor, 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 when
cleaning is complete.
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.
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 sensor, then start only if the dust off reference data will not be used with
existing photographs.