---
title: maxExposureDuration
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/format/maxexposureduration
---

# maxExposureDuration

A time value that indicates the maximum supported exposure duration.

## Declaration

```swift
var maxExposureDuration: 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)
- [minExposureDuration](avfoundation/avcapturedevice/format/minexposureduration.md)