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# isAutoDualCameraFusionEnabled

A Boolean value that specifies whether captures automatically combine data from a dual camera device.

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

## Discussion

The default setting is <doc://com.apple.documentation/documentation/Swift/true>, unless you are capturing a RAW photo. (By definition, RAW photos are unprocessed, and image fusion involves processing the captured image).

When you enable this setting, a dual-camera device automatically combines samples from both cameras to produce a higher quality image. This property applies only when using the [`builtInDualCamera`](/documentation/AVFoundation/AVCaptureDevice/DeviceType-swift.struct/builtInDualCamera) device type on supported devices.

> Tip:
> Image processing, including dual camera fusion, increases capture time. To capture photos at the highest possible speed (like in the built-in Camera app’s burst mode), set the ``doc://com.apple.avfoundation/documentation/AVFoundation/AVCapturePhotoSettings/isAutoDualCameraFusionEnabled`` and ``doc://com.apple.avfoundation/documentation/AVFoundation/AVCapturePhotoSettings/isAutoStillImageStabilizationEnabled`` properties to <doc://com.apple.documentation/documentation/Swift/false> and the ``doc://com.apple.avfoundation/documentation/AVFoundation/AVCapturePhotoSettings/flashMode`` property to ``doc://com.apple.avfoundation/documentation/AVFoundation/AVCaptureDevice/FlashMode-swift.enum/off``.

---

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