Feature●High Quality Optical Glass. Nano Multicoated. 16 coats, 8 each side. No Color cast●Easy Clean. Water Resistant.●10 Stop exposure correction.●Slim: 3.6mm deep. Ideal for Wide Angle Lenses.●Superfine matte black frame.●Double threaded metal frame for additional filters or Hood.●Includes Storage Case.Description High Quality Optical Glass. Nano Multicoated. 16 coats, 8 each side. No Color cast