Heavy diffusion filter by Lee Filters that creates an extremely soft, diffuse light distribution and completely eliminates hard shadows.
Definition
The Lee 129 is a color correction filter from the Lee Filters range. The filter converts artificial light (3200K) to daylight (5600K) and reduces the light output by 2/3 stops.
Practical Application
Areas of application for the Lee 129:
- Color Correction: Matching tungsten light to daylight color
- Mixed-Light Setups: Harmonizing different light sources without separate correction
- Window Light Simulation: Converting artificial light to daylight-like quality
- Location Adjustment: Correction for mixed lighting conditions on set
Technical Details
Specifications of the Lee 129:
- CTB filter (Color Temperature Blue) with 131 Mired shift
- Transmission: 32% (equivalent to 1.7 stops light loss)
- Available as a sheet (61x53cm) or roll
- Heat resistant up to 120°C for continuous operation
Practical Tips
- Perform exposure measurement after filter attachment
- Maintain cooling distance for powerful spotlights
- Use a color meter for exact Kelvin values
- Store filters flat and dry to avoid material damage
Professional Standards
The Lee 129 enables in film and TV production:
- Consistent color continuity between interior and exterior shots
- Reduced post-production time through on-set color correction
- Standardized workflows for changing lighting conditions
- Cost savings through reusability
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