Nikon Digital Camera D3000 User Manual

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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).

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.

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.

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.

G button

➜ B setup menu

D

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.