Orange gel filter converting daylight (5600K) to tungsten (3200K); causes approximately one stop of light loss.
Definition
The Full CTS is a color correction filter for film lights. CTS stands for "Color Temperature Straw" - an orange gel filter that corrects daylight (5600K) to artificial light (3200K).
Practical Application
The Full CTS is used for:
- Color Correction: Correcting daylight sources (HMI, LED) to a 3200K color temperature.
- Light Control: Matching different light sources without camera white balance.
- Mood Creation: Producing warm lighting moods in daylight scenarios.
- Workflow Optimization: Avoiding color corrections in post-production.
Technical Details
Technical specifications:
- Color Temperature Shift: 5600K → 3200K (-2400K)
- Light Loss: Approx. 1 stop
- Material: Polyester gel or polycarbonate
- Standard Sizes: Rolls or pre-cut sheets
Practical Tips
- Open exposure by one stop due to light loss.
- Protect the filter from overheating - maintain a minimum distance of 30cm from the light source.
- Use a light meter with color temperature measurement.
- Store dry, protect from UV radiation.
Professional Standards
In film production, the Full CTS enables:
- Uniform color temperature with mixed light sources.
- Quick set adjustments without recalibrating the camera.
- Reduced post-production time.
- Consistent color rendition over multiple shooting days.
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