Roscoe 1/2 Blue CTB Color Conversion Gel Filter - This filter is traditionally used to convert tungsten lighting to 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.
CTB filters offer you complete control when shooting under tungsten lighting.
| Color | 1/2 Blue |
| Size | 48"x25' (122cm x 7.6 m) |
| Transmission | 52% |
| Mired Shift | 68 |
| Application | Boosts 3200K sources to 4100K. A partial conversion to compensate for varying daylight conditions and voltage reduction, or to boost aging HMI lamps and yellowed soft lights. |
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Comments about Rosco # 3204 1/2 Blue CTB Color Conversion Gel Filter (48"x25' Roll):
The new equipment rocks!!! THE DELIVERY WAS SO FAST!!! we are in mexico and that wasn´t a problem to get it. Now all our productions have a natural cool color light!!! THANKS B&H
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