---
title: highResolutionStillImageDimensions
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/format/highresolutionstillimagedimensions
---

# highResolutionStillImageDimensions

The highest resolution still image the system can produce for this format.

## Declaration

```swift
var highResolutionStillImageDimensions: CMVideoDimensions { get }
```

## Discussion

Discussion Normally, the AVCaptureStillImageOutput class emits images with the same dimensions as the source AVCaptureDevice instance’s activeFormat. However, if you set highResolutionStillImageOutputEnabled to true, AVCaptureStillImageOutput emits still images with its source AVCaptureDevice instance’s activeFormat.highResolutionStillImageDimensions dimensions.