iOS has updated and the iPhone 12 Pro Max now saves to RAW files in Adobe DNG format - woohooo! But, massive file sizes, way bigger than Nikon and it shows why Apple insist on processing the images in camera for HEIF and JPG. The RAW file shows that phone camera lenses really are rubbish. However, I don't mind either of these as at least it puts the processing in my hands rather than some jumped up dumb algorithm.