Blown highlights are bright areas that have turned pure white and lost all detail. You can often recover a little by lowering the highlights and whites sliders, but a fully white area has nothing left to bring back. Prevention at the moment of shooting is the more reliable fix.
What Is Happening in the Image
A sensor records light up to a limit. Anything brighter than that limit is recorded as the same maximum value, so a bright cloud and the sun beside it become one flat white patch. A histogram shows this as a tall spike pushed against the right edge. If the spike is touching the edge, some detail is gone for good.
Recovering What You Can
- Turn on the clipping warning in your editor. It marks blown areas, often in red.
- Lower the highlights slider until the warning shrinks. Move slowly, since a big drop makes the image look grey and flat.
- Reduce the whites slider next, which controls the very brightest tones.
- Lower overall exposure slightly if the entire image is too bright.
- Add a small amount of contrast or lift the blacks to bring back punch.
- If a patch remains pure white, use a local adjustment such as a graduated filter on the sky, or crop it out.
Raw files hold more highlight information than ordinary compressed files, so recovery goes much further with them. With a compressed file, expect only mild results.
Prevent It While Shooting
- Turn on the highlight warning or live histogram in your camera. Blinking areas show where detail is lost.
- Lower exposure compensation by a third or two thirds of a stop when the scene has bright sky or white clothing.
- Meter for the bright area when it matters most, and accept darker shadows that you can lift later.
- Move your subject into shade so the contrast between light and dark is smaller.
- Shoot at a softer time of day, or when clouds diffuse the light.
Quick Reference
| Situation | Try this |
|---|---|
| White sky, detail in ground | Lower exposure, then lift shadows |
| Shiny skin | Reduce highlights and whites a little |
| Window in an indoor shot | Expose for the window or combine two frames |
Bracketing is another safety net. Take one frame at normal exposure and one or two darker ones, then keep the version where the bright areas still show detail. Some cameras and phones merge such frames automatically, which gives a balanced result with little effort on your side.
FAQ
Is it better to underexpose slightly?
For high contrast scenes, usually yes. Dark areas can be lifted with less damage than white areas can be restored.
Can a phone recover highlights?
Many phones combine several frames to keep bright areas under control. You can also tap the bright part of the screen and lower the exposure slider before shooting.
The Short Version
Use the clipping warning, reduce highlights and whites in small steps, and accept that pure white cannot be rebuilt. Next time, watch the histogram and expose a touch darker.