The metered exposure level's offset from the target exposure value, in EV units.
SDKs
- iOS 8.0+
- Mac Catalyst 13.0+
Framework
- AVFoundation
Declaration
var exposureTargetOffset: Float { get }
Discussion
The value of property indicates the difference between the metered exposure level of the current scene and the target exposure value.
You can observe changes to the value of this property using Key-value observing.