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Canon® EOS Rebel XSi/450D Guide to Digital SLR Photography by David D. Busch

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Sensor Cleaning

One of the Canon EOS Rebel XSi’s best features is the automatic sensor cleaning system that reduces or eliminates the need to clean your camera’s sensor manually using brushes, swabs, or bulb blowers (you’ll find instructions on how to do that in Chapter 9). Canon has applied anti-static coatings to the sensor and other portions of the camera body interior to counter charge build-ups that attract dust. A separate filter over the sensor vibrates ultrasonically each time the XSi is powered on or off, shaking loose any dust, which is captured by a sticky strip beneath the sensor.

Use this menu entry to enable or disable automatic sensor cleaning on power up (select Auto Cleaning to choose power-up cleaning) or to activate automatic ...

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