The Starscape filter suppresses light pollution from city lights, allowing the night sky to appear in its natural colors – a must-have for all night sky photographers. The goal of the Starscape filter is to make the night sky appear in its natural colors and to enhance its contrast. This is achieved by blocking the light transmission in the spectrum range of sodium and mercury vapor lamps, which are commonly found in most cities worldwide and are typically associated with light pollution. The yellowish and greenish hues are reduced, making the night sky appear clearer and more natural.