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Articles on filmmaking technique, production planning, and industry knowledge.
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Kelvin vs. Mired: Why Gels Are Rated in Mireds and What That Means When You're Matching Sources
A Full CTO gel is rated at +131 mireds, not at a Kelvin shift. That is not arbitrary. The mired scale is perceptually uniform in a way that the Kelvin scale is not -- meaning equal mired shifts look equal to the eye throughout the color temperature range. Here is the math behind gel selection and why Kelvin alone gives you the wrong gel.
How to Balance Mixed Lighting on Set Without a Color Meter
A color meter tells you the exact Kelvin of every light source in the frame. Without one, you have to work from visual reference, camera WB tools, and a systematic approach to gelling or neutralizing competing sources. This practical guide covers the most common mixed-light scenarios and the fastest solution path for each.