Kelvin temperature
Color-temperature readout next to the EV chip.
Where to find it
Viewfinder Layers icon Kelvin temperature
Summary
Estimates the dominant color temperature of the metered area in Kelvin and shows it as a chip alongside the EV readout. Locks AWB to daylight while enabled so the reading reflects the scene rather than the camera's auto white balance.
Detail
How it works
What it does
Estimates the dominant color temperature of the metered area in Kelvin (tungsten reads around 2800K, daylight around 5500K, open shade around 8000K) and shows it as a chip alongside the metered EV readout after each measurement.
How it's measured
While the badge is on the app locks white balance to the daylight reference. That way the analyzer reads the scene's true chromaticity instead of the camera's auto white-balanced image, which would have neutralized the exact thing we're trying to measure. The lock releases as soon as you turn the badge off and your previous AWB preference is restored.
When to turn this on
When you want to dial in a precise color-correction filter for color film (an 80A for tungsten on daylight stock, an 81-series warm-up filter in shade), when balancing flash to ambient, or when you just want to know what color the light actually is in the scene you're about to shoot.
What's the trade-off
AWB is forced to daylight while the badge is on, so the live preview will look colder or warmer than it would with auto white balance. The numerical reading is more honest because of it, but compose-and-shoot workflows may prefer the badge off so the preview matches what you would see through a tungsten-balanced viewfinder.