This app transforms your iPhone into a professional light meter, measuring exposure, color temperature, and tint. It offers specialized modes for photography and videography, with features like live histograms and the ability to save and annotate readings.
1.4
July 7, 2026
Film shooters: pick your stock (Portra, HP5+, Tri-X, and more) and KelvinCam pins ISO to box speed and corrects long exposures for reciprocity failure automatically. New contrast metering: spot-meter your key light, mark it, then meter the fill. KelvinCam reads out the lighting ratio in stops. Plus stability fixes and performance improvements.
MoreKelvinCam can measure color temperature in Kelvin, tint on the green-magenta axis, and exposure value (EV100). It also provides lux/foot-candle readings and a live luma histogram with clipping indicators.
For video, KelvinCam automatically applies the 180° shutter rule and calculates the correct shutter speed for selected frame rates. It can also advise on ND filter strength when needed.
Yes, you can tap Shutter or ISO in the recommendations card to lock it. KelvinCam will then solve for the other value in real time, similar to semi-automatic camera modes.
No, all processing happens live on your device. Your camera feed is never stored, transmitted, or shared, ensuring your privacy.
The 'Film Stocks' feature (Pro) helps photographers match settings to specific film types and correct for reciprocity failure. 'Contrast Ratio Metering' (Pro) allows for precise spot metering of key light.
KelvinCam was last updated on July 7, 2026, with version 1.4. This indicates active development and ongoing improvements to the application.
KelvinCam is currently supported on iPhone and iPad devices. Information regarding Android availability is not provided in the current data.
KelvinCam has an age rating of 4+, making it suitable for a wide range of users. This rating suggests it contains no mature content.