---
title: minExposureDuration
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/format/minexposureduration
---

# minExposureDuration

A time value that indicates the minimum supported exposure duration.

## Declaration

```swift
var minExposureDuration: CMTime { get }
```

## See Also

### Determining exposure support

- [systemRecommendedExposureBiasRange](avfoundation/avcapturedevice/format/systemrecommendedexposurebiasrange.md)
- [minISO](avfoundation/avcapturedevice/format/miniso.md)
- [maxISO](avfoundation/avcapturedevice/format/maxiso.md)
- [maxExposureDuration](avfoundation/avcapturedevice/format/maxexposureduration.md)