I have no idea why you wouldn’t call it an imagine format. But either way that’s changing the goal posts. Here is a consumer software doing what that iPhone do

I have no idea why you wouldn’t call it an imagine format. But either way that’s changing the goal posts. Here is a consumer software doing what that iPhone does. If that’s not to your liking, there is other software which produces 32bit float tiff images, those will support an even higher dynamic without the pain of EXR.