This Haida M10-II Drop-In Clear-Night Filter is designed to reduce the appearance of light pollution in images or video that include the night sky and to minimize illumination from artificial light sources such as sodium-vapor, mercury-vapor, and low-CRI LED street lamps. The M10-II version fits the Haida M10-II Filter Holder System with positive retention and easy release. The upgraded aluminum alloy frame enables the filter to be closer to the filter holder resulting in better protection. Constructed from optical glass, this multi and nano coated light pollution reduction filter provides clarity and color fidelity.