[SENSOR CLEANING]

Remove dust from the camera image sensor.

[OK]: Clean sensor immediately.
[WHEN SWITCHED ON]: If this option is selected, sensor cleaning will be performed when the camera turns on.
[WHEN SWITCHED OFF]: If this option is selected, sensor cleaning will be performed when the camera turns off (sensor cleaning is not however performed if the camera turns off in playback mode).

Dust that can not be removed using sensor cleaning can be removed manually.