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How to Clean a DSLR Sensor

The sensor of a digital single lens reflex camera (DSLR) is the device which takes the place of film. This sensor records the light which enters the lens to create the image, which is then transferred to either an internal memory, memory card, or external memory source. Like film, the sensor of a DSLR is subject to dust, which can create a spot or blemish on the image. The sensor of a DSLR is extremely delicate, but cleaning it is possible.

Things You'll Need

Sensor swab or dust free brush
Methanol cleaning fluid (optional)

Instructions

- 1
  Remove the lens from the lens mount to expose the sensor located at the back of the camera body.
- 2
  Using the dust free brush, gently sweep along the sensor.
- 3
  Mount the lens to the camera body and take a test photograph (use a solid, non patterned object for your control) or put the camera into "cleaning" mode if available. Examine the resulting photograph for dust. If the dust has not been removed, dismount the lens and continue.
- 4
  Moisten the camera cleaning swab with a small amount of methanol cleaner.
- 5
  Wipe the moistened swab gently across the sensor.
- 6
  Remount the lens to the camera body and take a test photograph. If necessary, repeat the process.

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