Rosco Roscolux #361 Hemsley Blue Filter, 20x24" Sheet

The Rosco Roscolux #361 Hemsley Blue Filter (20x24" Sheet) is manufactured in a unique technology to insure the longest possible life under hot theatrical lights. Three discrete layers are combined in a tri-extrusion process. By sealing the colored layer between two microscopically thin layers of clear film, dye migration is minimized and effective life is extended.