Color Temperature Meter+ vs Lightprint

Color Temperature Meter+ measures the colour temperature of the light around you in Kelvin, with tint, mired and the camera white balance to match, straight from your iPhone's camera. ▶ HOW IT MEASURES On iPhone the app reads the camera's own estimate of the light falling on the scene, the same estimate iOS uses to set white balance. Point the camera at a plain white or grey surface lit by the light you want to measure, not at the lamp itself. The reading settles within seconds and shows a ± range, so you can see how steady it is. When that estimate is not available, the app samples the centre of the frame instead, and you can calibrate it once on white paper in daylight. ▶ WHAT YOU SEE • Kelvin with a ± range, updating live • Mired value for filter and gel maths • Light type: golden hour, tungsten, fluorescent, LED, daylight, cloudy, shade • Tint (green or magenta) and Duv • Spectrum bar from 1,000 K to 15,000 K • The nearest camera white-balance preset: tungsten, fluorescent, flash, daylight, cloudy or shade ▶ FREEZE AND SAVE Tap Freeze to hold the current reading. A result card shows the Kelvin, mired, light type and matching white-balance preset, with Save Reading and Measure Again right below it. Saved readings keep their date and time. The latest 50 are kept, you can delete any of them, and you can export the list as CSV. ▶ PHOTOGRAPHY WB ASSIST Pick a target of 3200 K, 4300 K, 5500 K or 6500 K. The app shows the mired shift from the measured light to that target, the Kelvin to dial into your camera's custom white balance, and the CTO or CTB gel strength that closes the gap, from 1/8 upwards. ▶ REFERENCE CHART Thirteen common light sources, from candle flame (1,900 K) to clear blue sky (10,000 K), to compare with what you measured. ▶ HONEST LIMITS A phone camera is not a spectrometer. The app reports correlated colour temperature and tint, which is what matters for matching white balance and choosing gels. It does not measure spectral power distribution, CRI or TLCI, and two lamps with the same colour temperature but different spectra read the same. Mixed lighting gives a blend of the sources. Use it to set up shoots, match bulbs and check rooms; use a dedicated colour meter for critical colour work. ▶ PRIVACY Camera images are analysed on your device and are never uploaded. Available in 30 languages.

Lightprint helps photographers and video creators save lighting setups they need to repeat before shooting with a mirrorless, film, cinema camera, or manual camera app. Use the live camera meter to estimate EV, exposure settings, Kelvin, tint, and estimated lux. Lock ISO, aperture, or shutter, then let Lightprint calculate the missing value. For video, store FPS and shutter angle in project presets and see an estimated ND stop guide. Save each setup as a Light Recipe with location, camera, lens, film stock or picture profile, notes, thumbnail, measured values, and recommended target settings. Use Match Score to compare a saved recipe against the live camera reading when you return to the same room, desk, cafe, studio, or product setup. Lightprint includes reflected and diffuser-assisted reading modes, correction EV calibration, device-specific default correction, project presets, CSV export, and 4:5 or 9:16 recipe exports. Free users can measure light, estimate exposure and white balance, and save up to 5 light recipes. Lightprint Pro is a one-time lifetime unlock for unlimited recipes, Match Score, 4:5 and 9:16 PNG recipe exports, project presets, video notes, correction profiles, and CSV export. Lightprint is built for repeatable lighting recipes, not legal lux certification, professional color science, CRI, TLCI, SSI, or flash metering. Terms of Use: https://prizmchain.github.io/lightprint-terms-of-service.html Privacy Policy: https://prizmchain.github.io/lightprint-privacy-policy.html