Nikon Z8 User Manual page 805

3
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, in
which case a message will appear and the camera will return
to the display shown in Step 1. Choose another reference
object and press the shutter-release button again.
D
Caution: Image Sensor Cleaning
Dust off reference data recorded before image sensor cleaning is performed cannot be used with
photographs taken after image sensor cleaning is performed. Select [Clean sensor and then start]
only if the Image Dust Off reference data will not be used with existing photographs.
D
Cautions: Acquiring Image Dust Off Reference Data
An FX-format lens with a focal length of at least 50 mm is recommended.
When using a zoom lens, zoom all the way in.
Image Dust Off data cannot be acquired when a DX lens is attached.
The same reference data can be used for photographs taken with different lenses or at different
apertures.
Reference images cannot be viewed using computer imaging software.
A grid pattern is displayed when reference images are viewed on
the camera.
731
Image Dust Off Ref Photo