DatabaseImagingLens AccessoriesFilters77mm QuartzLine ND16 (4-Stop) FilterPolarPro 77mm QuartzLine ND16 (4-Stop) FilterPolarPro$99.99 MSRPKey FeaturesNeutral Density FilterRound Screw-In Format77mm Filter Thread77mm Front Thread4-Stop (ND16) Neutral Density16-Layer Multi-Coating+ Compare🔒 Log in to add this to a kit.OverviewSpecificationsThe ArchiveKey GripSpecificationsMetricUSFilter CategoryFilter TypeNeutral DensityFilter ShapeRoundPhysical AttributesFilter Size77mmFront Accessory Thread77mmRing MaterialAluminumFilter MaterialGlassMagneticNoExposure ControlND TypeStandardDensity4-Stop (ND16)Protection and Polarizing AttributesCoating16-Layer Multi-Coating