Canon EOS 20D Gebrauchsanleitung

The image sensor is like the ﬁlm in a ﬁlm camera. If any dust or other
foreign matter adheres to the image sensor, it may show up as a dark
speck in the images. To avoid this, follow the procedure below to clean
the image sensor. Note that the image sensor is a very delicate
component. If possible, you should have it cleaned by a Canon Service
Center.
While you clean the image sensor, the camera must be turned on.
Using the AC Adapter Kit ACK-E2 (optional, see page 154) is
recommended. If you use a battery, make sure the battery level is
sufﬁcient. Before cleaning the sensor, detach the lens from the camera.

Install the DC Coupler

(p.22)

or a

battery and turn the <

4> switch

to <

1>.

Select [Sensor clean.].

Turn the <

5> dial to select [c

Sensor clean.], then press <

0>.

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.

Select [OK].

Turn the <

5> dial to select [OK],

then press <

0>.

The mirror will lock up and the shutter
will open.

“CLEA n” will blink on the LCD panel.

Cleaning the CMOS sensor