For DJI Air 3S STARTRC NIGHT Light Pollution Reduction Lens Filter 1. Anti-light pollution filter for DJI Air 3S, multi-layer coating, waterproof, scratch-resistant, dust-proof, oil-proof, protect your drone lens from all-round damage. Anti-light pollution filter is used to reduce light pollution in images or videos, including the night sky, and minimize harmful light from artificial light sources (such as artificial light pollution from mercury gas, sodium and street lights with low CRI index), solve the problem of yellowing in night scene shooting, and make the picture present true color, which is a night scene shooting tool. 2. Each filter is made of high-definition optical glass, which has no effect on image quality. After multiple grinding and polishing, it forms a low refractive index to ensure the restoration of the true color of the image for color-accurate photo shooting. 3. The aviation-grade aluminum frame is laser engraved with a matte black finish to prevent light leakage or ghosting, ensuring that each filter has been rigorously tested and will not add extra burden to your gimbal or interfere with the normal flight of the drone. It weighs only 5 grams. 4. The snap-on design allows for safer and quicker installation. It can be tightly fixed to the drone during flight, with zero chance of loosening. 5. Each filter is equipped with an independent filter box, which is convenient for storage and protects the filter, making it easy to carry.