Depth Control on iPhone 15: How to Use It

Depth Control on the iPhone 15 lets you adjust the background blur (called bokeh) in Portrait mode photos, either before you take the shot or after. This guide walks you through both methods, what you need to get started, and how to fix common issues.

What You’ll Need

An iPhone 15, iPhone 15 Plus, iPhone 15 Pro, or iPhone 15 Pro Max (any model with Depth Control).
iOS 17 or later (the feature is built into the Camera and Photos apps).
A subject to photograph — Depth Control works best with people, pets, or objects with clear edges.

Step-by-Step

Open the Camera app on your iPhone 15. Swipe to “Portrait” mode in the camera modes carousel at the bottom (or side in landscape).
Frame your subject. Make sure the subject is within the yellow Portrait mode frame that appears. The phone will detect a person, pet, or object and show a depth map.
Tap the “f” button in the top-left corner of the viewfinder (or top-right in landscape). This opens the Depth Control slider, labeled with an aperture value like f/1.4 to f/16.
Drag the slider left or right. Sliding left (toward f/1.4) increases background blur; sliding right (toward f/16) decreases it. The preview updates in real time.
Tap the shutter button to take the photo. The depth setting you chose is saved with the image.
To adjust after taking the photo, open the Photos app and select the portrait shot. Tap “Edit” in the top-right.
Tap the “f” icon at the top of the editing screen (it appears only for photos taken in Portrait mode). The same slider appears.
Drag the slider to change the blur, then tap “Done” to save your edit. You can re-edit anytime.

Common Mistakes

Using Depth Control on non-Portrait photos: The slider only works on images taken in Portrait mode. Standard photos don’t have the depth data needed.
Shooting too close or too far: If your subject is too close (under about 2 feet) or too far (over about 8 feet), the depth map may be inaccurate, causing edge artifacts.
Expecting perfect edges: The blur is computed, not optical. Fine hair, glasses, or transparent objects can look slightly off, especially at the strongest blur.
Forgetting to update iOS: Older iOS versions may have bugs or missing features. Keep your iPhone updated.

Tips

Use the slider before shooting to compose the shot with the desired blur. It’s easier to see what you’ll get.
Start with a moderate blur (like f/2.8) and adjust later. You can always increase blur in editing, but you can’t recover detail lost at the strongest blur.
For group shots, choose a smaller aperture (higher f-number like f/4 or f/5.6) to keep everyone in focus.
Experiment with the “Portrait Lighting” effects (like Studio Light or Stage Light) alongside Depth Control for more creative control.
Check the depth map in the Photos app by tapping the “Portrait” button in edit mode — it shows which parts are in focus.

Troubleshooting

Slider not appearing: Make sure you’re in Portrait mode. If you’re in Photo mode, the slider won’t show. Also, check that your subject is detected — if no depth map is created, the f button may be grayed out.
Blur looks unnatural: Try a smaller aperture (higher f-number). Also, ensure the subject is well-lit; low light can make the depth map less accurate.
Can’t edit depth after taking photo: Only photos taken in Portrait mode have depth data. If you took a standard photo, you can’t add depth later. You’ll need to retake the shot.
Edge artifacts (halos or cut-out look): This happens when the subject’s edges are complex. Try moving the subject away from busy backgrounds, or use a less extreme blur.
Depth Control not working in third-party apps: Depth Control is only available in Apple’s Camera and Photos apps. Other apps may not support it.

Frequently Asked Questions

Can I use Depth Control on videos?

No, Depth Control works only on still photos taken in Portrait mode. Video recording does not support depth adjustment.

Does Depth Control work on all iPhone 15 models?

Yes, all four iPhone 15 models (standard, Plus, Pro, and Pro Max) have Depth Control. The Pro models may have slightly better edge detection due to the LiDAR scanner on the Pro Max, but the feature works the same.

Can I remove the blur completely?

Yes, slide the f-number to its maximum (f/16 on most models) to minimize blur, but the background won’t be perfectly sharp — it’s still a portrait shot.

Does Depth Control affect photo quality?

No, the depth setting is stored as metadata. You can change it anytime without degrading the image quality.

Why is my subject not detected?

Portrait mode needs a clear subject. Make sure there’s contrast between the subject and background, and that the subject is well-lit. If it still fails, try tapping on the subject to force focus.

Can I use Depth Control on photos taken with the front camera?

Yes, the front camera supports Portrait mode and Depth Control as well. Just switch to the front camera and select Portrait mode.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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