Apple has added a variable-aperture main camera to both the iPhone 18 Pro and iPhone 18 Pro Max. The change gives the 48-megapixel Fusion Main camera a physical opening that can change between four settings instead of using one fixed aperture for every scene.
Apple said six laser-cut blades move through the lens to adjust how much light reaches the sensor. The company says the camera can open wider in darker conditions and narrow the opening when more of a group or background needs to remain in focus.
Apple’s newsroom description and technical specifications list the aperture range as f/1.48, f/1.8, f/2.8 and f/4.0. The specifications also list sensor-shift stabilization, 100 percent Focus Pixels and a new set of manual camera controls for the main camera.
MacRumors reported that the feature was confirmed for both Pro models after earlier reports had suggested it might be limited to the larger Pro Max. The report described the lens as a new part of the camera system rather than a software-only setting.
The camera app can adjust the aperture automatically based on lighting and depth-of-field needs. Users can also choose the setting themselves through Pro Controls. Apple says the interface exposes aperture, shutter speed, white balance and a live histogram.
The same camera system supports a new API for third-party apps. That gives developers a way to use the aperture range in their own camera software instead of limiting the control to Apple’s Camera app. Apple has not promised that every third-party app will adopt it.
The practical effect will depend on sensor size, lens design and how apps process the resulting images. Apple’s confirmed specifications establish the hardware and controls, while independent testing will show how much difference the feature makes in real scenes. Preorders begin September 12, with availability scheduled for September 18.
The controls also give photographers more room to shape depth effects without changing lenses or moving closer to the subject.
