Polaroid Optics 4 Piece Filter Set (UV, CPL, FLD, WARMING) For The Olympus Evolt E-30, E-300, E-330, E-410, E-420, E-450, E-500, E-510, E-520, E-600, E-620, E-1, E-3, E-5 Digital SLR Cameras Which Have Any Of These (14-42mm, 40-150mm, 70-300mm) Olympus Lenses UV Protective Filter: Prevents loss of sharpness and contrast by filtering out UV rays and Haze. Protects Lens from scratches, scuffs and smudges CPL Circular Polarizer Filter: Uses Polaroids patented Polarizing techonolgy to give you total "on location" control of color saturation, make skies bluer, grass greener-even eliminate surface reflections from glass and water - all with picture perfect results FLD Fluorescent Filter: Eliminates that annoying greenish "tinge" which fluorescent lights add to photos. Includes Nylon Filter Case