Cleaning The Cmos Sensor; Removing Dust With Ultrasonic Vibrations (Dust Removal) - Pentax K-7 Operating Manual

Cleaning the CMOS Sensor

Shadows may appear in the image for white backgrounds and other
shooting conditions if the CMOS sensor becomes dirty or dusty. This
indicates that the CMOS sensor must be cleaned.
Removing Dust with Ultrasonic Vibrations
(Dust Removal)
Dust adhering to the CMOS sensor is removed by applying ultrasonic
vibrations to the filter on the front surface of the CMOS sensor for
approximately one second.
1
Select [Dust Removal] in the [R Set-up 4] menu and press
the four-way controller (5).
The [Dust Removal] screen appears.
2
Press the 4 button.
The Dust Removal function is activated.
Set [Start-up Action] to O (On) to turn the
Dust Removal function on every time the
camera is turned on. Use the four-way
controller (45) to set to P (Off) if you do
not want the function to be activated
when the camera is turned on.
When the Dust Removal function is
completed, the camera returns to the [R Set-up 4] menu.
Dust Removal
Dust Removal
Start-up Action
MENU
295
Start
OK
10