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Everything gets dusty, dirty, and smudgy. You know that, for instance, because you have a phone. Most of the time, your phone’s screen looks like it sunk with the Titanic. If you have a digital camera ...

To check for dust on your sensor, use the longest focal length or zoom setting of your lens, focus to infinity, and use a ...

To avoid constant lens cleanings, always pop your lens cap back in place when your camera isn’t in use. You can use a lens hood and filter to protect your lens. A quality protective filter like a Hoya ...