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# isSmoothAutoFocusSupported

A Boolean value that indicates whether the device supports smooth autofocus.

```
var isSmoothAutoFocusSupported: Bool { get }
```

## Discussion

The smooth focusing mode is available only on compatible devices. If this property’s value is <doc://com.apple.documentation/documentation/Swift/false>, setting the value of [`isSmoothAutoFocusEnabled`](/documentation/AVFoundation/AVCaptureDevice/isSmoothAutoFocusEnabled) to <doc://com.apple.documentation/documentation/Swift/true> raises an exception.

---

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