Adjust exposure before you take the photo

The fastest way to change exposure on your iPhone is to tap the screen while you are looking through the camera viewfinder, then slide your finger up or down on the brightness slider that appears. Sliding up makes the image brighter; sliding down makes it darker. This method works in the built-in Camera app on all recent iPhone models.

You can also lock the exposure at a specific brightness level by pressing and holding on the screen for about two seconds until you see "AE/AF Lock" appear at the top. This keeps the exposure steady even if you move the camera to a different part of the scene. Tap the screen again to unlock it.

The exposure slider stays active for several seconds after you tap, so you have time to adjust it before you take the shot. Once you are happy with the brightness, tap the shutter button (the white circle at the bottom of the screen) to capture the photo.

Key Takeaways

  • Tap the screen in the Camera app viewfinder, then slide your finger up to brighten or down to darken the exposure before you shoot.
  • Press and hold on the screen for two seconds to lock the exposure at a specific brightness level so it does not change as you move the camera.
  • The exposure slider disappears after a few seconds of inactivity, but you can tap the screen again to bring it back.
  • Exposure adjustments made in the Camera app do not permanently change your photo settings — each shot starts fresh.
  • If you shoot in Portrait mode or Night mode, the same tap-and-slide method works to adjust exposure before you take the photo.

Using the exposure compensation dial in Pro Raw mode

If your iPhone supports ProRAW (iPhone 12 Pro and later), you can access a more detailed exposure control. Open the Camera app, swipe left to find the ProRAW mode, and look for a small dial icon on the screen. Tap it to reveal the exposure compensation slider, which lets you adjust exposure in smaller increments than the standard method.

ProRAW gives you more control because the image file retains more detail in both bright and dark areas, so you can adjust exposure further when you edit the photo later. However, ProRAW files are much larger than standard photos and take up significantly more storage space on your phone.

Adjust exposure after you take the photo

If you did not get the exposure right when you shot the photo, you can adjust it in the Photos app using the built-in editing tools. Open the photo, tap Edit, then tap the dial icon (it looks like three overlapping circles). Scroll down to find Exposure and slide left to darken or right to brighten.

You can also use the Brilliance slider to brighten shadows without affecting the whole image, or the Highlights slider to tone down bright areas. These tools work on any photo, whether you shot it in standard mode or ProRAW. The changes are saved to your phone, but the original photo is never deleted — you can always revert to the original by tapping Revert.

Why your photo looks too dark or too bright

iPhones automatically set exposure based on what the camera thinks is the main subject of your photo. If you are shooting a bright sky, the camera may darken the whole image to avoid washing out the sky. If you are shooting a dark subject against a bright background, the camera may brighten the image too much. Tapping on the part of the scene you want to expose for tells the camera to prioritize that area instead.

Backlighting — when the light source is behind your subject — is a common reason photos come out too dark. Tap on your subject's face or body to expose for that area, and the background will be brighter but your subject will be properly lit. You can then use the exposure slider to fine-tune if needed.

Exposure lock versus focus lock

When you tap the screen, the Camera app locks both exposure and focus at the same time. If you want to lock exposure but keep focus moving, or vice versa, press and hold on the screen until "AE/AF Lock" appears, then tap the small AE or AF icon that shows up to toggle one off while keeping the other on. This is useful when your subject is moving but the lighting is staying the same.

The difference matters most in video. If you are recording and you want the exposure to stay constant while you pan across a scene, lock the exposure first, then start recording. The focus will still track your subject, but the brightness will not shift as you move the camera.

Exposure in different lighting conditions

In bright sunlight, you may need to darken the exposure to avoid blown-out highlights (areas so bright they lose all detail). Slide down on the exposure slider until the bright areas look natural. In low light, you may need to brighten the exposure, but be aware that brightening too much introduces noise (grainy texture) into the photo.

Night mode, available on iPhone 11 and later, automatically adjusts exposure for very dark scenes and holds the camera still for several seconds to gather more light. You can still use the exposure slider in Night mode to make the image brighter or darker before you take the shot, but the camera will take longer to capture the photo.

Common mistakes when adjusting exposure

The most common mistake is adjusting exposure after you have already locked focus. If you tap the screen to adjust exposure and then move the camera, the focus may shift to a different part of the scene, which can throw off your composition. Adjust exposure first, then frame your shot, then tap the shutter button.

Another mistake is over-brightening in low light. While it is tempting to slide all the way up to see more detail, pushing exposure too far introduces noise that makes the photo look grainy and unnatural. A moderate adjustment usually looks better than an extreme one. You can always brighten further when you edit the photo later.

Do not forget that exposure adjustments are temporary. If you close the Camera app and reopen it, the exposure slider resets to automatic. Each time you open the app, you start fresh with the camera's automatic exposure setting.

Frequently Asked Questions

Can I change exposure while I am recording video?

Yes. While you are recording, tap the screen to bring up the exposure slider and adjust it the same way you would for a photo. The brightness change will be visible in the video as you make the adjustment. Lock the exposure first if you want it to stay constant throughout the recording.

What is the difference between exposure and brightness in the editing tools?

Exposure adjusts the overall light captured by the camera sensor, while Brightness in the editing tools adjusts how the image is displayed. Exposure changes are more natural-looking because they affect the entire tonal range. Use Exposure for larger adjustments and Brightness for fine-tuning.

Why does my exposure slider disappear after a few seconds?

The slider is designed to get out of your way so you can see the full viewfinder. Tap the screen again to bring it back if you need to make another adjustment before you shoot.

Does adjusting exposure use up battery faster?

No. Adjusting exposure in the Camera app does not drain your battery any faster than taking a normal photo. The exposure adjustment is just a display setting that tells the camera sensor how much light to capture.

Can I set a default exposure level for all my photos?

No. The iPhone Camera app does not have a setting to change the default automatic exposure. Each photo starts with automatic exposure, and you adjust from there if needed. If you find yourself always making the same exposure adjustment, you might want to check your lighting or try a different angle.