Marumi® brand. DHG P L D Multi-coated CPL.Made in Japan.Ultra-low reflective coating minimizes reflectionoff internal CCD & CMOS sensors.Multicoated (6 coatings) optical glass filter. Pro quality filter. Black rim: Edge treated with black ink to eliminate reflections.Low profile: Just 5mm high (not inc rear threads).Great for Wide angle lenses, no vignetting.Non-reflective metal frame eliminates reflections.Metal, double threaded frame to allow additional filters or hoods. A Circular Polarizer (polariser) creates contrast between blue sky and cloud for dramatic deep blue skies. Cuts glare off reflected surfaces such as water. Rotates for different effects.Includes acrylic case.