Nikon D70S - Manual (Page 177)

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Menu Guide—The Setup Menu
4 Position the lens ten centimeters (four inches) from a bright, featureless
white object. After framing the object so that nothing else is visible in the
viewfi nder, press the shutter-release button halfway. In autofocus mode,
focus will automatically be set to infi nity; in manual focus mode, set focus
to infi nity manually before pressing the shutter-release button.
5 Press the shutter-release button the rest of the way down to acquire Im-
age Dust Off reference data (note that noise reduction turns on automati-
cally when the subject is poorly lit, increasing the amount of time needed
to record the data). The monitor turns off when the shutter-release but-
ton 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 mes-
sage shown at right will be displayed. Choose
another reference object and repeat the pro-
cess from Step 3.
Firmware Ver.
To display the current camera fi rmware version,
highlight Firmware Ver. in the setup menu (
155) and press the multi selector to the right.
Press the multi selector to the left to return to the
setup menu.
Image Dust Off Reference Data
When Image Dust Off reference data are viewed on the
camera, the grid pattern shown at right appears in the
monitor; histogram and highlights are not displayed.
Files created with Dust ref photo can not be viewed
using ordinary imaging software.