Kenko Starry Night Prosofton

The Kenko Filter Effect Starry Night Prosofton φ67 mm is a specialized camera filter for astrophotography, made in Japan with the model number 549612. This 67 mm diameter filter effectively reduces light pollution by selectively attenuating specific frequency bands emitted by sodium vapor lamps, mercury vapor lamps, and other artificial light sources, which cause yellow and orange reflections in the night sky. By filtering out these artificial light frequencies while allowing starlight to pass through, it enhances the visibility and contrast of constellations against the night sky. The filter incorporates a softening effect that specifically targets point light sources like stars, creating a subtle blur that emphasizes star patterns without affecting the surrounding landscape or background elements. This dual functionality eliminates the need to stack multiple filters, reducing the risk of vignetting and lens flares while remaining compatible with wide-angle lenses. Its precision construction ensures reliable performance for landscape photography featuring starry skies, providing photographers with a tool to capture more natural night sky colors and improved star definition in light-polluted environments. Constructed from optically high-quality materials, this single filter delivers consistent results for both amateur and professional astrophotography applications.