How to clean the sensor manually on the EOS 5D Mk II

Article ID: ART105237 | Date published: 05/11/2015 | Date last updated: 11/04/2015


How to clean the sensor manually on the EOS 5D Mk II


Dust which could not be removed by the automatic sensor cleaning can be removed manually with a blower, etc. The surface of the image sensor is extremely delicate. If the sensor needs to be cleaned directly, having it done by a Canon Service Center is recommended.

Before cleaning the sensor, detach the lens from the camera.

1 Select [Sensor cleaning].
  • Under the [] tab, select [Sensor cleaning], then press <>.

2 Select [Clean manually].

  • Turn the <> dial to select [Clean manually], then press <>.

3 Select [OK].

  • Turn the <> dial to select [OK], then press <>.
  • In a moment, the mirror will lockup and the shutter will open.
  • "CLn" will blink on the LCD panel.

4 End the cleaning.

  • Set the power switch to <OFF>.
  • As power source, using the AC Adapter Kit ACK-E6 (sold separately) is recommended.
  • If you use the battery, make sure it is fully recharged. If a battery grip with size-AA/LR6 batteries is attached, manual sensor cleaning will not be possible.
  • While cleaning the sensor, never do any of the following. Doing any of the following will cut off the power and close the shutter. The shutter curtains and image sensor might get damaged.
    • Setting the power switch to <OFF>.
    • Opening the battery compartment cover.
    • Opening the card slot cover.
  • The surface of the image sensor is extremely delicate. Clean the sensor with care.
  • Use a plain blower without any brush attached. A brush can scratch the sensor.
  • Do not insert the blower tip inside the camera beyond the lens mount. If the power is turned off, the shutter will close and the shutter curtains or reflex mirror might get damaged.
  • 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.



Rate this Article
Was this article helpful?
Yes, This document is helpful
No, This document needs a clearer explanation
Please provide your comments