Nikon 1553 Manuale Utente

Pagina di 530
370
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.
3
Acquire dust off reference data.
Press the shutter-release button the rest of the way down to 
acquire Image Dust Off reference data. The monitor turns off 
when the shutter-release button is pressed.
If the reference object is too bright or 
too dark, the camera may be unable 
to acquire Image Dust Off reference 
data and the message shown at right 
will be displayed. Choose another 
reference object and repeat the 
process from Step 1.
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 and then start 
only if the dust off reference data will not be used with existing 
photographs.