COMPATIBILITY: Designed for lenses and adapters with a standard filter thread. Confirm your filter size by locating the 'ø' symbol on the lens or lens cap for hassle-free compatibility. LIGHT POLLUTION BLOCKER: The Natural Night filter is designed to block common wavelengths of light pollution, allowing for clear and accurate astro photography of the night sky. NIGHT SHOOTING: Specifically created for night photography and videography, the filter allows for capturing stunning images of the night sky with reduced light pollution interference. NANO COATING: Our nano coating makes this filter waterproof, scratch-resistant, and anti-reflective for long-lasting performance. Water beads up and falls straight off, making them easy to clean. OPTICAL GLASS: Made with high-quality optical grade glass like that used in telescopes, the Natural Night allows you to capture stunning shots with crystal-clear images and exceptional sharpness.