Dust is the main cause of most camera dirt-related issues. There are a few things that you can do at home to get rid of the dust inside your camera. The following steps are simple and safe for your camera. If they are not enough to get rid of the dust, you should have it professionally cleaned. If you use a digital camera, never ever try to directly clean your sensor with anything other than a manual squeeze bulb. Anything else will scratch or possibly even break it. The camera I use in this example is a Canon 5D, a digital SLR. But you should be able to use this advice to clean any type of camera. read the full article How to Clean a Camera.