With iOS 14.3 and the new iPhone, Apple has introduced an updated RAW image file format spec that extends on the already robust editing capabilities of RAW. They call it ProRAW.
Ben Sandofsky, of Halide, goes long on explaining how digital image sensors work, what RAW is, and how Apple has extended that spec and why with ProRAW in Understanding ProRAW.
I appreciated this bit:
Remember old film cameras? Their photos also had to be developed from a negative.
Remember? I used one today Ben!
It is a worthy read if you're into this sort of thing. I have an iPhone 12 Pro Max and plan on using ProRAW when the situation warrants it. In fact, with what will likely be one of the biggest snowstorms of this winter headed our way I have some ideas. I'm glad Ben took the time to explain exactly what the main benefits are.