Of course, you can easily estimate the color temperature and adjust your LED light colder or warmer. But if you always have a smartphone in your pocket, it is welcome to show off what it can do.
How it works
All you need is a white sheet of paper. You point the cell phone camera at it and the color temperature is displayed. Now you can set your LED light to match this temperature. No more mixed light sources, no more color correction headaches.
When is this useful?
Think about shooting an interview in a hotel room: window light from outside, the room's ceiling lights, and your LED panel. Without matching these sources, you might end up with yellowish skin tones on one side and bluish tones on the other. With this tool, you can quickly measure each light source and adjust your LED lights to match.
Or imagine photographing at an event where you move between different rooms — each with its own lighting setup. A quick measurement helps you maintain consistent color throughout your shots.
Why use my tool?
While professional color meters are fantastic tools, they cost hundreds of euros and to be honest, who still keeps them in their camera bag? I don't.
My web tool is:
- Free to use
- No app installation needed
- Works on any smartphone
- Always accessible through your browser
- No ads or tracking
Pro Tips
- Use the averaging mode (takes 5 readings) for more accurate results
- Keep your phone parallel to the surface when measuring
- Take readings from your main light source first, then match others to it
- Document the readings for continuity in video shoots
- Use a proper white reference card if available (though plain white paper works well)
Click this button from the browser of your smartphone: