Hoya, Circular Polarizing Filter HD Nano MkII ø77mm

New 16 layer (both sides) ultra-smooth, ultra-hard nano coating Ultra-hard surface coatings are 200% more scratch resistant than original standard optical coatings Stain resistant, water & oil repellent coating makes everyday maintenance easier Very thin frame with front threads to attach lens caps and other filters 25% Greater Light Transmission than standard polarizing film for nearly 1/2 stop more light New 16 layer (both sides) ultra-smooth, ultra-hard nano coating Ultra-hard surface coatings are 200% more scratch resistant than original standard optical coatings Stain resistant, water oil repellent coating makes everyday maintenance easier Very thin frame with front threads to attach lens caps and other filters 25% Greater Light Transmission than standard polarizing film for nearly 1/2 stop more light