---
title: currentExposureTargetBias
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avcapturedevice/currentexposuretargetbias
---

# currentExposureTargetBias

A special constant that represents the current exposure bias value.

## Declaration

```swift
class let currentExposureTargetBias: Float
```

## Discussion

Discussion Pass this value to the setExposureTargetBias(_:completionHandler:) method to lock exposure bias to its current value, which disables autoexposure.

## See Also

### Adjusting exposure compensation

- [exposureTargetOffset](avfoundation/avcapturedevice/exposuretargetoffset.md)
- [exposureTargetBias](avfoundation/avcapturedevice/exposuretargetbias.md)
- [minExposureTargetBias](avfoundation/avcapturedevice/minexposuretargetbias.md)
- [maxExposureTargetBias](avfoundation/avcapturedevice/maxexposuretargetbias.md)
- [setExposureTargetBias(_:completionHandler:)](avfoundation/avcapturedevice/setexposuretargetbias(_:completionhandler:).md)