UV protection filters became popular with film cameras, UV light could throw the colors off on film, so having a UV filter became a given. UV filters are not needed on digital cameras, however it was found that often the filter would protect the lens from damage, so people still use protection filters on their lenses. I use protection filters, but, choose Hoya DMC PRO1 Clear Protector Digital Filter. The Hoya PRO1 filters cost about 1/10 the cost of the lenses I protect. They are DMC which stands for digital multi coated, which means they have the same coatings as the lens to protect against lens flare and ghosting. They are also optically better than cheaper filters so they wont distort your photographs. They are not UV filters because digital cameras don't need a UV filter.