It's also worth cleaning the outside of your dSLR before you start. Use a soft cloth to clean any oil off the surfaces of the camera and check for dust, dirt and grit in the nooks and crannies.

If you live near one of Canon’s service centers, such as the one in Lyndhurst, New Jersey, you could even drop off a lens and have a Canon technician not only clean it, but diagnose it for ...

Point-and-shoot and DSLR cameras have a knack for attracting dirt, and that grime can show up in pictures. Sand and moisture at the beach can render a good camera unusable. Here’s how to clean ...

Instead, take your camera down to your local camera shop and ask a professional for help. And be sure to take a look at Rich Trenholm's piece for more in depth information on how to clean your dSLR.