---
title: AVCaptureCameraLensSmudgeDetectionStatus.unknown
framework: avfoundation
role: symbol
role_heading: Case
path: avfoundation/avcapturecameralenssmudgedetectionstatus/unknown
---

# AVCaptureCameraLensSmudgeDetectionStatus.unknown

Indicates that the detection result has not settled, commonly caused by excessive camera movement or the content of the scene.

## Declaration

```swift
case unknown
```

## See Also

### Status values

- [AVCaptureCameraLensSmudgeDetectionStatus.disabled](avfoundation/avcapturecameralenssmudgedetectionstatus/disabled.md)
- [AVCaptureCameraLensSmudgeDetectionStatus.smudgeNotDetected](avfoundation/avcapturecameralenssmudgedetectionstatus/smudgenotdetected.md)
- [AVCaptureCameraLensSmudgeDetectionStatus.smudged](avfoundation/avcapturecameralenssmudgedetectionstatus/smudged.md)