Canon Digital Rebel XTi Review at Steves Digicams
Steves Digicams have reviewed the new Canon EOS 400D (Canon Digital Rebel XTi in the USA), which offers 10 megapixels, a large 2.5 inch LCD screen and new integrated dust removal system.
“The XTi’s self-cleaning image sensor is a first for Canon in any of its dSLRs. It eliminates or reduces the occurrence of dust on the image sensor. With other dSLRs (Olympus E-series and the Sony A100 notable exceptions), the risk of dust on the sensor occurs at every lens change; it’s not a matter of if, but when your images will have noticeable dark spots - especially noticeable at small apertures. The XTi’s self-cleaning process is invoked each time you power the camera off and on, causing an ultrasonic vibration to shake dust loose from the image sensor. I did not purposefully deposit any dust on the sensor during our testing, but did change lenses frequently in dusty conditions and found no evidence of dust in our samples.”