---
title: autoFocusSystem
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/format/autofocussystem-swift.property
---

# autoFocusSystem

The auto focus system the format uses.

## Declaration

```swift
var autoFocusSystem: AVCaptureDevice.Format.AutoFocusSystem { get }
```

## See Also

### Determining the auto focus system

- [AVCaptureDevice.Format.AutoFocusSystem](avfoundation/avcapturedevice/format/autofocussystem-swift.enum.md)