Engadget
How To Reset The Camera Settings On Your iPhone

Disabling Preserve Settings in Settings → Camera leaves Live Photo on while turning off other options; the default video resolution is 1080p 30 fps (240 fps for slo-mo), with Smart HDR and Prioritise Faster Shooting enabled. iOS 26 devices also enable Lens Correction, Macro Control, Scene Detection, and set Formats to 24 MP. To revert all settings, select Settings → Transfer or Reset iPhone → Reset All Settings, which also removes Apple Pay cards, keys, and passes.