Handheld device measuring incident light at set in lux or EV values, independent of subject color or camera metering.
Definition
The light meter is a measuring device for the precise determination of light intensity and exposure values on the film set. The device measures incident or reflected light and outputs precise aperture and shutter speed values.
Practical Application
Light meters are used in the following areas:
- Exposure Measurement: Determination of correct camera settings for desired image effect
- Light Balancing: Equalizing different light sources to uniform exposure values
- Contrast Measurement: Determining the brightness difference between light and shadow
- Color Temperature Measurement: Control of Kelvin values in mixed lighting situations
Technical Details
Modern light meters offer the following functions:
- Spot, incident, and flash measurement in one device
- Digital display with 1/10-stop accuracy
- Kelvin measurement from 2300K to 10000K
- Storage of measured values and comparison functions
Practical Tips
- Incident measurement directly at the subject for precise skin tone exposure
- Spot measurement for selective brightness control of individual image areas
- Calibration before each shooting day to ensure measurement accuracy
- Protection against moisture and impacts with appropriate cases
Professional Standards
Light meters are standard equipment for:
- Reproducible exposure values for continuity shots
- Precise lighting control without time-consuming test shots
- Documentation of light values for VFX integration
- Quality control according to DCI-P3 and Rec.709 standards
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