The video zoom factor at which a dual camera device can automatically switch between cameras.
- iOS 11.0–13.0Deprecated
A dual camera device (see
AVCapture) contains both wide-angle and telephoto cameras.
This property’s value is the zoom factor at which the zoomed field of view from the wide-angle camera matches the full field of view from the telephoto camera. When the
video setting meets or exceeds this value, the device can automatically chooses which camera provides output imagery (or automatically combine imagery from both to create final output) based on scene conditions. For zoom factors below this value, the device always uses imagery from the wide-angle camera.
On a single-camera device, this value is always