In the iOS camera app it is possible to toggle between ultra wide and default. I have tried every combination of available AVCaptureDevice.DeviceType for .front cam on an iPhone 12 and I cannot figure out how to get the ultra wide front cam mode working.
What configuration should be used here?
iPhone 12 has a 12MP sensor on the front-facing camera.
However, this is still considered a "Wide Angle" (not "Ultra Wide") camera and so it is discoverable as the front-facing builtInWideAngleCamera.
Some devices, such as the latest iPad Pro, feature a "12MP Ultra Wide camera, 122° field of view" (as can be seen here under the TrueDepth Camera section: https://www.apple.com/ipad-pro/specs/).
In the iOS camera app it is possible to toggle between ultra wide and default.
And to address this specifically, what you are seeing is a virtual crop. The Camera app is not toggling between two devices in this scenario, it is cropping the full-sized image to produce a smaller field of view.
