The iPhone 11 models feature unprecedented hardware for capturing and processing better photos and videos. But you may want to opt out or control two of those features: Deep Fusion and Smart HDR.
The two features both attempt to use many images captured continuously over very short periods to synthesize a photo with a large dynamic range, especially to avoid blown-out highlights and muddy shadow detail, while also preserving fine detail, like hair, fur, or textile textures.
MacDailyNews Take: Unlike Smart HDR, Deep Fusion lacks a dedicated switch, but it can be turned off, as Fleishman explains in his full article.