High-quality 43mm Master 803M ND 0.9 3-Stop MRC Nano Neutral Density Filter for optimal light reduction Multi-coated coating for enhanced image quality and reduced reflections and glare Provides uniform light attenuation for color-neutral image results Durable construction with finely ground and polished special glass for optimal optical quality Outer layer with dirt- and water-repellent properties for easy maintenance and protection Ideal for creating distinct water flow effects and achieving a wipe effect in photos