Third-party camera apps unlock more aperture control on iPhone 18 Pro

The iPhone 18 Pro's new main camera introduced a variable aperture, but Apple's native Camera app limits users to only four manual settings: f/1.48, f/1.8, f/2.8, and f/4, according to a report from The Verge. Third-party camera applications are now offering photographers finer-grained control over the feature.

Apps such as Moment Pro and Blackmagic Camera have been highlighted as alternatives that allow more granular adjustment of the iris than Apple's built-in options. For photographers accustomed to traditional cameras, where aperture can typically be adjusted in smaller increments or continuously, the native app's four-step limitation has been described as a notable constraint on creative control.

Variable aperture is a relatively new feature for smartphone cameras, historically more common in dedicated mirrorless and DSLR cameras, where it allows photographers to manage depth of field and light intake with precision. Apple's introduction of the feature on the iPhone 18 Pro line marked an effort to bring more manual photographic control to its flagship devices.

The limitation appears specific to Apple's own software rather than a hardware restriction, since third-party apps interfacing with the same lens mechanism are able to expose additional settings. This suggests the iris itself may be capable of finer adjustment than the native app currently exposes to users.

It remains unclear whether Apple plans to expand the range of manual aperture options in a future software update.