I've had an ongoing battle with sensor dust. It drives me crazy! What happens is that dust gathers on the sensor of the digital cameras I use. It takes a lot of time to remove this dust from images after they've been shot.
I think most digital photographers struggle with sensor dust. So far I've come up with two solutions. One is to use the cleaning methods suggested by Copper Hill Images. Since the only method Canon seems to recommend is blowing the sensor off with a hand blower (which usually doesn't solve the problem), the helpful folks at Copper Hill have come up with a more effective method for sensor cleaning, or more accurately, cleaning the glass plate that covers the sensor . The other solution is to buy another camera body and try to avoid lens switches, especially in windy and dusty places.
I hope other photographers find the Copper Hill method useful. I feel like they're the underground freedom fighters of the digital imaging world.
