Polaroid Optics CPL Circular Polarizer Filter For The Olympus OM-D E-M5, E-M1, E-M10, E-P5, PEN-E-PL3, PEN-E-PL5, E-PM1, E-PM2, PEN E-P3, PEN E-P2, PEN E-PL1, E-PL2, GX1 Digital SLR Cameras Which Have Any Of These (9-18mm) Micro Olympus Lenses 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