1、The lens is made of high‑quality optical glass, high‑definition grinding treatment, multi‑layer nano‑coating process, the lens is waterproof, oil‑proof, stain‑proof and scratch‑proof. 2、The surface of the lens forms a protective layer similar to the surface of the lotus leaf, so that water droplets and oil cannot be absorbed on the surface, making it easier to clean and maintain. 3、The MCUV filter adopts multi‑layer coating, which is suitable for shooting in seaside, mountain, snow field and open area, etc. It can reduce the blue tint caused by ultraviolet rays; at the same time, for the camera, it can also eliminate the interference of ultraviolet rays on the CCD, which is helpful To improve the clarity and color reproduction effect. 4、CPL is a commonly used filter that eliminates unnecessary reflections and can eliminate most of the reflections on non‑metal non‑spherical surfaces. It is generally used for landscape photography. The sky is bluer when shooting. When shooting water, it eliminates reflections on the water surface and shoots under the water. The scenery makes the whole picture clearer and more transparent. 5、The ND filter can reduce the exposure of the camera, extend the exposure time, and use the photo water stream or white clouds to present a cotton‑like soft texture. The number behind the ND represents the light‑reducing ability.