High image-quality monitoring with optical performance supporting 5 megapixels. Advanced design engineering and special optic glass adopted, best suited for color, Black & White, and Day and Night cameras. f12.5-50mm, 4x zooming application compatible lens. Designed to maximize optical performance with high-accuracy aspheric lens, low-dispersion glass, and high refractive-index glass. Built-in ND filter of T360, supporting high sensitivity cameras.