183Sensor CleaningThe camera has a Self Cleaning Sensor Unit attachedto the image sensor’s front layer (low-pass filter) toshake off dust automatically.The Dust Delete Data can also be appended to theimage so that the dust spots remaining can be erasedautomatically by Digital Photo Professional (providedsoftware).About smear adhering to the front of the sensorBesides dust entering the camera from outside, in rare cases lubricantfrom the camera’s internal parts may adhere to the front of the sensor.In case visible spots still remain after the automatic sensor cleaning,having the sensor cleaned by a Canon Service Center is recommended.Even while the Self Cleaning Sensor Unit is operating, you canpress the shutter button halfway to interrupt the cleaning and startshooting immediately.COPY
