NDPL Filter: Can remove for glaration, increase saturation, improve contrast, make the image more three-dimensional and clear CPL Filter: unnecessary polarizing light to make the picture clearer, generally used for landscape photography High-defination grinding optical glass lens, brings you clear images and restoring subjective viewing angle Multi-layer coating, waterproof, oil-proof, and scratch-resistant MCUV Filter: Suitable for in seasides, mountain, snowfields and open areas, It can reduce the blue tone caused by ultraviolets rays