Source:www.searchles.com

Here are a couple of videos, compliments of canon digital cameras.

The first one is really just a showoff of a Canon EOS Mark III digital camera firing at an ultra high rate of speed.

But the second video is a tutorial of how to clean the camera's sensor using the "Sensor Swab" system.

I'm not endorsing this product since I don't have any personal experience with it, but for those of you with interchangeable lens digital cameras; this is something you have to know about.