Between mercury vapor, sodium, Low CRI streetlights, there are many undesirable wavelengths of light that pollute the night sky. The glow from these can keep your camera from seeing the sky properly and affect your night images. Because of this, NiSi has created the Natural Night Filter to block the most common wavelengths of light pollution. Each NiSi Filter for DJI Air 2S is designed with a lightweight airframe with Aircraft Aluminum Construction resulting in an amazingly light filter at approx 1g. The filters feature high definition optical glass free from color cast which provides ultimate sharpness. The NiSi filters for DJI Air 2S are treated with NiSi's Nano coating making them easy to clean, waterproof as water beads up and falls straight off and very low reflection. The NiSi Filters for DJI Air 2S are designed to complement the style of the DJI Air 2S and are easy to attach and remove from the camera. All NiSi Filters for DJI Air 2S pass the startup calibration.