NiSi 100x100mm Natural Night Filter (Light Pollution Filter)

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The 100 x 100mm Natural Night Light Pollution Filter from NiSi is an essential tool for night scenes and astrophotography. Light pollution occurs in areas of the night sky that are above or near concentrated and intense sources of artificial light such as cities. This filter corrects color distortion caused by undesirable wavelengths of light that pollute the night sky caused by mercury vapor, sodium, low CRI streetlights, and more. The glow from these sources can keep a camera from rendering the sky properly and impact your astrophotography and night images. Natural Night Filters block the most common wavelengths of light pollution by blocking the yellow light frequencies to render neutral, natural tones.