Highlight Warning (Blinkies): How to Use It to Save Your Highlights

The highlight warning, often called “blinkies”, is a playback feature that makes the brightest parts of your photo flash on the camera screen. Flashing areas are so bright they have turned pure white with no detail, which is called clipping or blown highlights. Turn it on in your camera’s playback or display menu, check it after important shots, and if something you care about is blinking, such as a face, a white dress or cloud detail, reduce exposure with exposure compensation and shoot again. Small blinking areas like the sun or bright reflections are usually fine.

Your camera screen can be misleading. On a bright day it looks dim. At night it looks bright. A photo that seems perfect on the back of the camera may turn out to have a sky with no detail or a white shirt that has become a flat white shape.

The highlight warning is a simple tool that tells you the truth about your brightest areas. It takes a few seconds to set up and is one of the most useful features for beginners, because it shows a problem you cannot always see with your eyes.

This guide explains what blinkies are, how to turn them on, how to read them, when to worry and when to ignore them, and what to do when you see them. It also covers a few limits of the warning, common mistakes, a 10-minute exercise and an FAQ.

What the highlight warning shows

Every camera sensor has a limit to how much light it can record in each spot. When part of the scene goes beyond that limit, the camera records it as pure white. There is no texture, no colour and no detail left in that area. Photographers call this clipping, or blown highlights.

The highlight warning finds those pure white areas and makes them flash, usually black and white, when you view the photo on your camera screen. That flashing is why people call them blinkies. Some cameras show the clipped areas in a solid colour instead of flashing.

So when you see blinkies, the camera is saying: “In these spots, the photo has no detail. It is just white.”

Why it matters

Lost highlights are much harder to fix than dark shadows. If part of a photo is a little dark, you can often brighten it in editing and recover detail. If part of a photo is pure white, there is often nothing left to recover. Editing can make it grey, but it cannot invent clouds or fabric texture that were never recorded.

That makes the highlight warning valuable because it warns you while you can still do something: take the photo again with less exposure.

Common subjects where highlights blow out:

• Bright skies and clouds.
• White buildings in sunlight, like the one in the photo above.
• White clothing, such as wedding dresses and white shirts.
• Snow.
• Faces lit by strong sun or flash, especially foreheads and noses.
• Water with bright reflections.
• Windows in indoor photos.

How to turn the highlight warning on

On most cameras, the highlight warning is turned off by default. Menu names vary, but look for something like:

• “Highlight alert” or “Highlight warning”.
• “Blink” or “Highlights” in the playback display options.
• A playback display mode that shows highlights, sometimes reached by pressing the info or display button while viewing a photo.

If you cannot find it, search the camera’s manual for “highlight”. Once it is on, it stays on.

Many mirrorless cameras also offer a live warning called zebras or zebra stripes. These show diagonal stripes over very bright areas on the screen or viewfinder before you take the photo. Zebras usually let you set the brightness level at which they appear. Blinkies, by contrast, usually only appear after you take the shot, during playback.

Phones rarely show a highlight warning in the normal camera app, but some pro or manual camera modes include zebras or a histogram.

How to read the blinkies

When you look at a photo with the warning on, ask three questions.

1. What is blinking?

Look at which parts are flashing. Is it the sun, a tiny reflection, a lamp? Or is it a face, a dress, the whole sky?

2. Do I care about detail there?

This is the most important question. Some things are supposed to be pure white:

• The sun itself.
• Bright light bulbs and street lights.
• Tiny sparkles on water or glass, called specular highlights.
• A deliberately bright, white background in a high-key portrait.

Other things need detail:

• Skin.
• Clouds and sky.
• White clothing.
• Snow, where you want texture.
• Your main subject, almost always.

3. How much is blinking?

A small blinking spot is usually fine. Large areas blinking, especially across your subject, mean the photo is overexposed. Overexposed simply means too bright.

What to do when you see blinkies

If the blinking area matters, reduce the exposure and shoot again. The easiest way depends on the shooting mode you use.

• Auto, program, aperture priority or shutter priority: use exposure compensation. Dial in minus a third, or minus two-thirds, of a stop and shoot again. Keep going until the important areas stop blinking.
• Manual mode: use a faster shutter speed, a smaller aperture, or a lower ISO. Faster shutter speed is usually the easiest.
• Phone: tap on the bright area and slide the exposure control down.

A “stop” is a doubling or halving of light. Most cameras adjust in thirds of a stop, so each click is a small change. The guide to the exposure triangle explains how aperture, shutter speed and ISO work together.

But now the shadows are too dark

Reducing exposure to save highlights makes everything darker, including shadows. Sometimes the scene simply has too much contrast for the camera. The range of brightness a camera can capture in one photo is its dynamic range, and bright, sunny scenes often go beyond it.

When that happens, you have options:

• Protect the highlights and brighten shadows later. Shadows usually hold more recoverable detail than highlights, especially in RAW files.
• Change the light. Move your subject into shade, wait for a cloud, or come back at a softer time of day.
• Add light to the shadows. A reflector or fill flash brightens the darker areas so the difference is smaller.
• Bracket. Take several photos at different exposures and combine them later. See bracketing and HDR.
• Accept some clipping. If the clipped part is unimportant, let it go.

The highlight warning and the histogram

The highlight warning has a close relative: the histogram. A histogram is a graph of all the brightness levels in the photo, from black on the left to white on the right.

• A tall spike pressed against the right edge means a lot of the photo is pure white.
• Data stopping short of the right edge means no highlights are clipped.

The two tools work well together. The histogram tells you how much is clipped. The blinkies tell you where. For beginners, blinkies are often easier, because you can see at a glance whether the clipped part is the sun or your friend’s face.

Limits of the highlight warning

The highlight warning is useful, but it is not perfect. Knowing its limits helps you use it well.

It is based on a JPEG preview

Even if you shoot RAW, the camera creates a small JPEG preview to show on the screen, and the warning is based on that preview. RAW files often hold a little more highlight detail than the preview suggests. That means a small amount of blinking may still be recoverable in a RAW file using highlight recovery in editing.

This is a bonus, not a reason to ignore the warning. Treat blinkies as a cautious early warning.

Picture settings affect it

Because the warning uses the JPEG preview, settings like contrast, picture style and some colour profiles change what blinks. A high-contrast style shows more blinking than a neutral one.

One colour can clip before others

Sometimes only one colour channel, such as red in a sunset or a red flower, is clipped. The standard warning may not show this clearly. If colours look flat and lacking in detail in very saturated areas, try reducing exposure a little even without blinkies. Some cameras offer an RGB histogram, which shows the red, green and blue channels separately.

Exposing to the right, gently

You may hear about a technique called ETTR, short for “expose to the right”. The idea is to make the photo as bright as possible without clipping important highlights, then darken it in editing. This gives cleaner shadows with less noise.

Blinkies make ETTR practical: increase exposure until something important starts to blink, then back off slightly. As a beginner, you do not need ETTR for every photo, but it helps in low-contrast scenes and is worth trying once you are comfortable with the warning.

When to check the blinkies

You do not need to check every photo. A good habit:

• Check the first shot in any new light or location.
• Check again when the light changes, such as the sun coming out from a cloud.
• Check when photographing bright subjects: snow, white clothing, skies, bright windows.
• Check before important moments, like a ceremony or a sunset peak.

Once your exposure is right for a scene, you can shoot freely until something changes.

Situations where blinkies help most

• Sunsets and skies. The sky near the sun blows out easily. The guide to photographing sunsets covers more.
• Snow. Bright snow can trick the meter in either direction. Check that the snow is bright but not blinking. See the winter photography guide.
• Weddings and white clothing. A dress with no lace detail is a classic mistake.
• Portraits in sun. Check foreheads, noses and cheeks for blinking.
• Indoor rooms with windows. Windows often blink. Decide whether you want the view outside or are happy with white windows.
• Night scenes. Street lights will always blink; check that signs and lit buildings keep detail.

Clipping warnings in editing apps

The same idea exists after the shoot. Most photo editing apps have a clipping warning, often turned on by clicking small triangles at the corners of the histogram or by holding a key while dragging the exposure or highlights slider.

When it is on, clipped highlights usually show in red and clipped shadows in blue. This lets you:

• See whether a photo really has lost highlights, or whether the camera preview was being cautious.
• Pull the highlights or whites slider down until the red patches shrink.
• Avoid accidentally clipping highlights while brightening a photo. It is easy to push a sky or face into pure white when editing.

Get into the habit of turning the warning on whenever you brighten a photo. It takes the guesswork out of editing, just as blinkies do in the camera.

What about shadows?

Highlights are not the only area that can clip. Very dark areas can turn pure black, with no detail, which is called clipped or crushed shadows. Most cameras do not have a blinking warning for shadows, but the histogram shows it: data piled against the left edge means pure black areas.

Clipped shadows are usually less of a problem than clipped highlights for two reasons. First, deep black often looks natural, such as a night sky or a dark doorway. Second, shadows in RAW files usually hold more recoverable detail than they appear to. Still, if your main subject sits in a pure black area, add exposure, add light, or move the subject.

The goal is a photo where the important parts have detail at both ends. The blinkies guard the bright end; the histogram watches both.

Common mistakes

• Never turning the warning on. It is off by default on many cameras. Turn it on once and leave it on.
• Trusting screen brightness. The screen looks different in sun and shade. Trust the blinkies and histogram instead.
• Panicking about every blink. The sun and tiny sparkles are supposed to be white.
• Ignoring blinking on the subject. If a face or dress is blinking, reduce exposure.
• Darkening the whole photo too much. Reduce exposure only until important areas stop blinking.
• Forgetting the light changed. Recheck when the sun comes out or you move.
• Assuming RAW saves everything. RAW holds a little extra detail, not unlimited detail.

Try this: a 10-minute blinkies test

1. Minute 1 to 2: Find the highlight warning in your camera menu and turn it on.
2. Minute 3: Find a bright scene: a sunny window, a white wall in sun, or a bright sky with clouds.
3. Minute 4: Take a photo with normal settings. Play it back. What is blinking?
4. Minute 5 to 6: Set exposure compensation to plus one and shoot again. Notice how much more blinks.
5. Minute 7 to 8: Now reduce exposure compensation one third of a stop at a time, shooting each time, until the important parts stop blinking.
6. Minute 9: Look at the histogram for the same photos and see how the graph moves away from the right edge as the blinking stops.
7. Minute 10: Compare the photos on a computer. Look at cloud or wall detail in the brightest version versus the one where nothing important blinked.

After this test, you will understand exactly what the warning is telling you, and you will start checking it automatically.

Frequently asked questions

What are blinkies on a camera?

A playback feature that makes pure white, clipped areas of a photo flash on the screen, showing where highlight detail is lost.

How do I turn on the highlight warning?

Look in the playback or display menu for “highlight alert”, “highlight warning” or “blink”. Check your manual if you cannot find it.

Are blinkies always bad?

No. The sun, lights and small sparkles are meant to be white. Worry when your subject or important areas are blinking.

What is the difference between blinkies and zebras?

Blinkies show clipped areas after you take a photo. Zebras show stripes over bright areas live, before you take it.

Can I recover blinking highlights in editing?

Sometimes a little, especially from RAW files, because the warning is based on a JPEG preview. Large clipped areas usually cannot be recovered.

How do I fix blinkies?

Reduce exposure with exposure compensation, a faster shutter speed, a smaller aperture or lower ISO, then check again.

Wondering how to read that graph next to your photo? Learn the histogram.

Already have a photo with bright areas that look washed out? See how highlight recovery works.