---
title: minExposureRectOfInterestSize
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/minexposurerectofinterestsize
---

# minExposureRectOfInterestSize

The minimum size you may use when specifying a rectangle of interest.

## Declaration

```swift
var minExposureRectOfInterestSize: CGSize { get }
```

## Discussion

Discussion The size returned is in normalized coordinates, and depends on the current activeFormat. If isExposureRectOfInterestSupported returns false, this property returns { 0, 0 }.

## See Also

### Setting an exposure rectangle of interest

- [isExposureRectOfInterestSupported](avfoundation/avcapturedevice/isexposurerectofinterestsupported.md)
- [exposureRectOfInterest](avfoundation/avcapturedevice/exposurerectofinterest.md)
- [defaultRectForExposurePoint(ofInterest:)](avfoundation/avcapturedevice/defaultrectforexposurepoint(ofinterest:).md)