Designed for night landscape photography, the Hoya Starscape filter reduces light pollution from artificial light common in cities. The Hoya Starscape reduces light transmission in the area of the spectrum normally associated with light pollution from sodium and mercury vapor lamps, which are common in most cities around the world. As a result, the filter provides a clearer image with natural colors and improved contrast in the night sky. Other similar filters that reduce light pollution through a special glass coating can produce color shifts, especially when used with wide-angle or super-wide-angle lenses. The Hoya-Starscape filter eliminates these problems by using a special glass formula so that no color shift occurs, even with wide-angle or super-wide-angle lenses. The Hoya Starscape is effective when photographing Aurora Borealis (Northern Lights). The green light patterns in the northern night sky are enhanced by reducing light pollution produced by nearby urban areas. The Hoya starscape filter is very helpful in time-lapse photography. By reducing light pollution directly during the shooting process, the time required for post-processing is greatly reduced. The combination of Hoya-Starscape and Softon-A will allow the bright stars in the night sky to stand out even more, making the image more impressive and attractive.