This Rosco E-Colour #442 1/2 CT Straw 48" x 25' Roll is part of a comprehensive system of European color filters for film and video production. E-Colour consists of every possible color and and material for color effects, alteration, diffusion, and reflection. Whether you are in film or TV, video or digital, E-Colour has something for you. These filters are produced with the highest standards and latest dye formulations and bonding technology. Rosco assures the highest levels of reliability and performance.