Marumi® brand. Multi-coated Circular Polarizer.Pro quality filter. Made in Japan.Metal, double threaded frame to allow addtional filters or hoods. Great for video, still, and digital photos. A Circular Polarizer (polariser) creates contrast between blue skyand cloud for dramatic deep blue skies.Cuts glare off reflected surfaces such as water.Rotates for different effects. Brand new in package with clear acrylic case.