JW 37mm Multi-coated UV Filter For Olympus M.Zuiko Digital ED 14-42mm 14-42mm f/3.5-5.6 EZ Lens,Panasonic Lumix G Vario 12-32mm f/3.5-5.6 ASPH. Lens+ JW Cloth The anti-reflective coating helps to reduce reflections on the filter surface. JJC ultra-thin F-MCUV is made of high-quality optical glass, and light transmission is up to approximately 98%, providing you with additional contrast and high color fidelity. The filter absorbs UV light, which often makes outdoor photographs hazy and indistinct. Made of aviation aluminum material, the uttra thin filter frame has a matte finish on the surface. It is complied with the ROHS standard that is limited by European Union. The front of the frame is designed with thread for attaching lens cap or other accessories. Multi-coating helps to reduce flare, ghosting, and reflections on the filter surface for higher light transmission and resulting in greater contrast and color fidelity.