Rosco Cinegel #3441 Filter, 20x24" Sheet, Full Straw CTS Transmission: 50%, -1.0s Mired Shift: +160 Application: A yellower (or less red) version of Full CTO. Converts 5500deg.K daylight to 2900deg.K. Deep-dyed base Color: Full Straw (CTS) Size: Sheet: 20x24" / 51x61cm