Cleaning your own dSLR is tricky business. Make sure you're doing it right so you don't make things worse in the process. Richard Trenholm was CNET's film and TV editor, covering the big screen, small ...
Beyond the Sensor Clean function ... Trusted camera shop. The sensor is fragile and expensive, $60 for a professional cleaning is far cheaper than a new T3i. You can also use compressed air to blow ...