KENKO Starry Night N 49mm Light Pollution Cut Filter for Astrophotography and Nightscape Photography Reproduces the Natural Colors of the Night Sky

[A filter that cuts out light pollution and brings out the true colors of the night sky] "Starry Night" is a filter for astrophotography and nightscape photography that effectively cuts out "light pollution" from lights such as sodium lamps and mercury lamps. [Cuts out only specific wavelengths of light] By cutting out only the wavelengths commonly used in streetlights, such as 589nm (sodium lamps) and 435nm/546nm/577nm (mercury lamps), you can reproduce the true colors of the night sky. [Can be used without lens restrictions] Starry Night has no restrictions on the focal length of the lens used, and does not produce color shifts even with wide-angle lenses, making it suitable for astrophotography. It is also highly effective for time-lapse photography, which is difficult to process in post-processing. [Suitable for use with auto white balance] Starry Night is not a color-adjusting filter, so you can use it with auto white balance. Adjust the color temperature manually to your preference. [Product Specifications] Filter size: 49mm / Frame thickness: Thin frame / Exposure multiplier: 1/3 stop / Country of origin: Japan / Packaging: Original specifications