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3 Cleaning the CMOS sensorN
Clean the image sensor.
Use a rubber blower to carefully blow
away any dust, etc., on the surface of
the image sensor.
Stop the cleaning.
Turn the <4> switch to <2>.
X The camera will turn off, the shutter
will close, and the mirror will go back
Set the <4> switch to <1>. The
camera will then be ready to shoot.
During the sensor cleaning, never do any of the following that
would turn off the power. If the power is cut off, the shutter will
close and it may damage the shutter curtains and image sensor.
• Turn the <4> switch to <2>.
• Open the CF card slot cover.
• Open the battery compartment cover.
Do not insert the blower tip inside the camera beyond the lens mount. If
the power goes out, the shutter will close and the shutter curtains and
image sensor may be damaged.
Use a blower not attached with a brush. A brush can scratch the sensor.
Never use canned air or gas to clean the sensor. The blowing force can
damage the sensor or the spray gas can freeze on the sensor.
When the battery is exhausted, the beeper will sound and the <c>
icon will blink on the LCD panel. Set the <4> switch to <2> and
replace the battery. Then start over again.
You cannot clean the sensor if Battery Grip BG-E4 (optional) is attached
to the camera and size-AA batteries supply the power. Use AC Adapter
Kit ACK-E2 (optional) or use a battery having sufficient power.
If you cannot remove all of the dust, consult a Canon Service Center.