Five unreleased Camera app features turned up in the iOS 27 beta, found by the code examiner who posts as pdfu and reported by MacRumors. Exposure scopes put a waveform or a histogram on screen to help judge exposure while you shoot. Focus peaking outlines whatever is sharp in a colored edge, and a separate overlay warns when part of the frame is blowing out, using a solid color, a pulsing one, diagonal stripes or a checkerboard. The self-timer can fire several shots in a row rather than one, restarting the countdown immediately instead of waiting for each photo to save.
Two of the five need a phone nobody owns yet. Manual focus locking is still in the code, but Apple has restricted it to devices that ship with iOS 27 or later, so it will not run on any iPhone sold today. The other is aperture-based image correction, which adjusts lens corrections by aperture setting and blends between up to four reference points, and that has no job on a camera whose opening never changes. The iPhone 18 Pro is widely expected to carry a variable aperture main camera, which is what makes those two read as the new models rather than a software update for everyone. None of the five are reachable in the current betas, and Apple can hold any of them back on September 9.