Professional lighting equipment or technique used in film and television production.
Definition
The Rosco 80 is a blue color filter for lighting fixtures that converts tungsten light (3200K) to daylight (5600K). Transmission: 36%.
Practical Application
Use in various scenarios:
- Color Correction: Matching artificial light to daylight color temperature
- Light Control: Account for 1.5 stops of light loss
- Effect Design: Cool atmosphere in mixed lighting situations
- Set Efficiency: Color correction on set rather than in post
Technical Details
- CTB filter (Color Temperature Blue)
- Available sizes: Roll stock 122cm x 7.6m or sheets 50cm x 61cm
- Heat resistant up to 200°C
- Can be combined with other Rosco filters
Practical Tips
- When mixing with daylight: Use a light meter for color temperature
- Mount the filter in front of the light source, not in front of the lens
- Open exposure by 1.5 stops or double the light output
- Store dry, protect from direct sunlight
Professional Standards
Rosco 80 enables:
- Color consistency between interior and exterior shots
- Fast lighting setups without changing lamps
- Reduced color correction in post-production
- Standard workflow on professional sets worldwide
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