Get right physical cameras characteristics when zooming

[Luc Savelli]

Hello CameraX Team, 

I'm using the back camera in a Preview + ImageAnalysis use case. I need for my app to get some characteristics (lens distortion, focal length...). I'm interested in zooming the image in/out. Unfortunately, on devices supporting logical multi camera, I did not found any way to catch the changes of physical camera stream when zooming, and to get the correct camera characteristics of the underlying physical camera. Moreover, I cannot see any changes in the camera characteristics of the logical camera when zooming in/out. It's always returning the same characteristics, corresponding to the main back camera.
Any tips/advices ? Maybe new APIs in future CameraX releases ? 

P.S : I'm using a Pixel6 Pro with Android 14

Thanks in advance