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Tech Trend: Camera Dust Busters

New models of digital cameras come with multiple ways of eliminating dust particles.

Melissa J. Perenson

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Illustration by Gordon Studer

Illustration: Gordon Studer
Many digital SLR users have long lamented the headaches caused by dust particles getting onto the camera's sensor. Three years ago Olympus was first to market with a solution: its sensor vibration technology, which knocked dust off the sensor. Sony's recently introduced Alpha digital SLR possesses a similar mechanism.

Now Canon is jumping into the fray with the most comprehensive weaponry yet: the EOS Integrated Cleaning System, introduced in the EOS Digital Rebel XTi in September. Canon redesigned the low-pass filter to separate it into two physical parts (to keep dust away from the sensor), added vibration technology to shake dust from the sensor, and inserted a feature that maps any remaining particles to remove them with software. For tips on battling the problem, read "The Dirt on Digital SLRs' Dust."

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