Digital Multi Coated: DMC filters greatly reduce lens flare and ghosting caused by reflections. A UV filter is mostly transparent to visible light, and can be left on the lens for nearly all shots. Serves as a permanent lens protector.
The ultraviolet radiation often spoils the photos in outdoor leaving them neblinosas and without contrast or colour. Very useful when landscape photography, especially mountain and marine scenes, where the UV radiation or the fog growing threaten to make your photographs are blur of colour and clarity.