iOS 27 Beta Code Points to Five Unannounced iPhone Camera Features [Rumor]

Hidden code in the iOS 27 beta points to five unannounced Camera app features, including exposure scopes, focus peaking, and manual focus, according to a deep dive by MacRumors forum member pdfu on the MacRumors forums.



None of the features are accessible in current betas, and Apple could still hold some or all of them back from the September release. The findings go beyond the Camera changes already announced for iOS 27, including a fully customizable layout.


The first addition is a set of exposure scopes. The code implements both a waveform and a histogram for judging exposure while shooting. A histogram shows how much of an image falls into shadows, mid-tones, and highlights, while a waveform presents similar information according to its horizontal position in the frame. Three presets are available for both scopes - Luminance, RGB Composite, and RGB Parade - with the histogram also offering a choice between a continuous curve and individual bars. The rendering code was added in beta 2 and remains present in the latest build.

Other code covers focus peaking and highlight-clipping warnings. Focus peaking outlines edges with strong local contrast, helping the photographer identify which parts of the scene are sharply defined. A separate overlay flags highlights that are becoming too bright, with four supported styles: solid color, pulsing color, diagonal stripes in the zebra style, and a checkerboard pattern. The code also supports adjustable clipping thresholds and overlay colors.

Repeated self-timer captures are implemented as well. After each shot, the countdown restarts immediately rather than waiting for the photo to finish processing, allowing several timed photos to be taken back to back. The interface remains unfinished in beta 8, and forcing the feature on produces the message, "A menu cannot be produced for Captures."

Manual focus has a longer history. A Focus slider appeared in iOS 26 builds before being removed in iOS 27 beta 1, but the lower-level command for locking focus at a selected lens position remains. The current capability check requires an iPhone whose first supported operating system is iOS 27 or later, excluding every existing model. Similar controls already ship in Apple's Final Cut Camera.


The final change affects image processing and may apply to a device with a variable physical aperture. iOS 27 can select and blend lens-correction data according to the aperture value, using calibration references for neighboring settings and combining them with varying contribution levels.

The finding may be relevant to the iPhone 18 Pro, which is expected to feature a variable-aperture main camera that entered production earlier this year. The calibration system accepts between one and four correction references, although pdfu notes that this does not mean the new iPhone will have four physical aperture stops. iOS may instead extrapolate lens data for intermediate values.