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 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 ...

The photography whizzes at Digital Photography School show you how to clean your camera lens using a variety of methods. For example, that old standby, lens cleaning fluid: In most camera stores ...