David Newton from Canon Professional Network teaches you how to eliminate dust spots on a Canon EOS camera. The Canon EOS has a self-cleaning sensor to help eliminate dust from it. You need a lens of 50 mm or longer for this to work properly. If you have a zoom lens, set it to the longest focal length it has. Switch the lens to manual focus and turn the focus ring until infinity. Enter the second red menu tab and choose Dust Delete Data at the bottom of the list. Pressing it will show you your previous dust-deleted data. After this, you need to capture a piece of white material or paper to gather the dust-deleted data.