7
Appendix
122
Raise the mirror up and open the shutter when cleaning the 
CMOS sensor with a blower.
1 Turn the camera off and remove the lens.
2 Turn the camera on.
3 Select [Sensor Cleaning] in D5 menu and press 
D.
The [Sensor Cleaning] screen appears.
4 Select [Mirror Up] and press E.
The mirror rises up.
5 Clean the CMOS sensor with a blower.
6 Turn the camera off.
The mirror automatically returns to its original position.
Pixel defects such 
as bright spots 
and dark spots 
appear in the 
image.
There are 
defective pixels in 
the CMOS sensor.
Activate [Pixel Mapping] from 
the D5 menu.
It takes about 30 seconds to 
correct the defective pixels, so 
be sure to install a fully charged 
battery.
Problem Cause Remedy
Sensor Cleaning
D5