UV Filter (ultraviolet) Haze (1A) for protection against dust, dirt, scratches, fingerprints and the sun's ultraviolet rays. | Circular Polarizing Filter. Used to increase color saturation, like darkening blue skies so that white clouds stand out. | FL-D Filter (fluorescent) for taking pictures indoors under fluorescent lights. This filter removes the greenish tint given off by fluorescent lighting. | Compact protective carrying case for transporting and storing your set of filters. | 10 year warranty