Canon EOS 5D - Manual (Page 42)

42
The image sensor is like the film in a film camera. If any dust adheres
on the image sensor, it may show up as a dark speck on the images. To
avoid this, follow the procedure below to clean the image sensor.
Using the AC Adapter Kit ACK-E2 (optional, see page 170) is
recommended. If you use a battery, make sure the battery level is
sufficient.
1
Install the DC Coupler (p.26) or a
battery and turn the <4> switch
to <1>.
2
Select [Sensor cleaning].
Turn the <5> dial to select [c
Sensor cleaning], then press <0>.
X If you are using a battery with
sufficient power, the screen shown in
step 3 will appear.
If the battery is exhausted, a warning
message will appear and you will not
be able to proceed further. Either
recharge the battery or use a DC
coupler and start from step 1 again.
3
Select [OK].
Turn the <5> dial to select [OK],
then press <0>.
X The mirror will lock up and the shutter
will open.
X “CLn” will blink on the LCD panel.
3 Cleaning the CMOS sensorN