The ratio of width to height for the camera’s simulated imaging surface.
- iOS 9.0+
- macOS 10.11+
- tvOS 9.0+
- Model I/O
To determine the width of the imaging surface, use this property and the
sensor property. For example, with the default vertical aperture of 24mm and default aspect ratio of 1.5 (or 3:2), the horizontal aperture is 36mm.