---
title: secondaryNativeResolutionZoomFactors
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/format/secondarynativeresolutionzoomfactors
---

# secondaryNativeResolutionZoomFactors

The zoom factors at which this device transitions to secondary native resolution modes.

## Declaration

```swift
@nonobjc var secondaryNativeResolutionZoomFactors: [CGFloat] { get }
```

## Discussion

Discussion Devices that provide secondary native resolution zoom factors can switch their pixel sampling mode dynamically to produce high-fidelity images without upscaling at a fixed zoom factor beyond 1.0.

## See Also

### Determining zoom capabilities

- [systemRecommendedVideoZoomRange](avfoundation/avcapturedevice/format/systemrecommendedvideozoomrange.md)
- [videoMaxZoomFactor](avfoundation/avcapturedevice/format/videomaxzoomfactor.md)
- [videoZoomFactorUpscaleThreshold](avfoundation/avcapturedevice/format/videozoomfactorupscalethreshold.md)
- [supportedVideoZoomRangesForDepthDataDelivery](avfoundation/avcapturedevice/format/supportedvideozoomrangesfordepthdatadelivery.md)
- [zoomFactorsOutsideOfVideoZoomRangesForDepthDeliverySupported](avfoundation/avcapturedevice/format/zoomfactorsoutsideofvideozoomrangesfordepthdeliverysupported.md)