1. Optical glass material, stable optical properties and high uniformity2. Multi-layer coating, can filter ultraviolet and stray light, and the image is clearer3. A single filter weighs about 0.76-0.8g, which is light and will not increase the load on the body4. Waterproof, oil-proof, scratch-proof, effectively protect the lens5. Simple installation6. The product only has filters and does not contain other itemsNote: If the surface of the lens is contaminated, please do not use normal paper towels to wipe it. Static electricity will cause more paper fibers to remain on the surface of the lens.