NiSi 100X100mm Square Polarizer PL II Exclusive Filter, 100mm System Optical Glass Filter 52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm Lens,Compatible Lee Cokin Hitech Singh-Ray Ultra Low Color Cast, Ultra Low Reflection High Definition,Ultra-thin frame design Nitto original polarizing material Advanced frame embossing technology Blackened glass edge technology,Black fine grinding frame