Dichroic filters are durable glass color filters that transmit specific wavelengths of light and reflect the rest of the spectrum, rather than absorb it – which means colors that don’t fade over time and increased light transmission compared to plastic color filters. Manufactured using the highest quality coatings, Rosco Permacolor Dichroic Filters offer designers a long-life filter solution that is durable enough to withstand the extreme temperatures of moving-lights and architectural light fixtures. Permacolor Dichroic Filters are available in a palette of over 60 standard colors and we are capable of creating custom-designed colors as well.