Rosco Roscolux #3220 Double Blue CTB Color Conversion Gel Filter, 24"x25' Roll

The Rosco Roscolux #3220 Double Blue CTB Color Conversion Gel Filter (24" x 25' Roll) is traditionally used to convert 2800deg.K tungsten lighting to 10000deg.K daylight. CTB (Color Temperature Blue) filters are available in a full spectrum of degrees (strengths) which, depending on your needs, can be used to either raise the temperature of your lighting or used to create different lighting interpretations.