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# isDualCameraDualPhotoDeliveryEnabled

A Boolean value that determines whether a dual camera device delivers images from both cameras.

```
var isDualCameraDualPhotoDeliveryEnabled: Bool { get set }
```

## Discussion

When this property is <doc://com.apple.documentation/documentation/Swift/false> (the default), and the photo output is configured with a capture device of the [`builtInDualCamera`](/documentation/AVFoundation/AVCaptureDevice/DeviceType-swift.struct/builtInDualCamera) type, the photo output delivers a single main photo image for each capture. (The device determines how to produce that image from one or both cameras).

If you change this setting to <doc://com.apple.documentation/documentation/Swift/true>, your delegate’s [`photoOutput(_:didFinishProcessingPhoto:error:)`](/documentation/AVFoundation/AVCapturePhotoCaptureDelegate/photoOutput(_:didFinishProcessingPhoto:error:)) method fires at least twice for each main image—once for the telephoto image and again for the wide-angle image. Setting this property to true when not using a dual-camera device raises an exception.

---

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