Chroma Technology LoGlow Light Pollution Filter

This Chroma Technology LoGlow Light Pollution filter blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from metal-halide and vapor lamp sources which together contribute to sky glow. Chroma Technology filters have extremely durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. These coatings can withstand humidity changes and extreme temperature fluxes and remain spectrally accurate in center wavelength (CWL) and bandpass adherence. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.