minAvailableVideoZoomFactor
The minimum zoom factor allowed in the current capture configuration.
Declaration
var minAvailableVideoZoomFactor: CGFloat { get }Discussion
On single-camera devices, this value is always 1.0. On a dual-camera device, the allowed range of video zoom factors can change if the device is delivering depth data to one or more capture outputs.
Setting the videoZoomFactor property to (or calling the ramp(toVideoZoomFactor:withRate:) method with) a value less than 1.0 always raises an exception. Setting the video zoom factor to a value between 1.0 and the minimum available zoom factor clamps the zoom setting to the minimum.
This property is key-value observable.