CC 025C Wratten 100mm 4" Gel Filter
Originally designed for photographic use, Kodak Wratten Filters have also become a popular choice for a wide variety of industrial applications. Although coated, the filters should be handled only by the edges or corners to avoid damage.
A type of filter created by dissolving organic dyes in a gelatin material to achieve the desired spectral performance. The gelatin liquid and dye combination is then coated onto a supportive substrate until it has dried. After removal from the substrate, the film is coated with laquer for protection.