iPhone 18 Pro Rumored to Get Variable Aperture Camera, a First for iPhone

Apple's next flagship phone is still nearly two years away, but the camera inside it is already taking shape in the supply chain. According to Ming-Chi Kuo, the analyst who tracks Apple's manufacturing partners with unusual precision, the iPhone 18 Pro and iPhone 18 Pro Max will introduce variable aperture to their main rear camera—a capability that has never appeared on an iPhone before. The main camera in question is the 48-megapixel Fusion sensor, the wide-angle lens that does most of the heavy lifting in everyday photography.

Variable aperture is a mechanical feature that lets photographers control how much light enters the lens before it hits the sensor. On current iPhones—the 14 Pro, 15 Pro, and 16 Pro models—the main camera has a fixed aperture of ƒ/1.78. The lens is always wide open, always letting in the same amount of light. With the iPhone 18 Pro, users would be able to adjust this manually, narrowing or widening the aperture depending on the shooting conditions and the look they want. It's a feature that has long been standard on professional DSLR and mirrorless cameras from manufacturers like Sony and Canon, but it has remained absent from smartphones until now.

Kuo first reported this possibility last month. What gives the rumor more weight is what he revealed this week: BE Semiconductor, a Dutch manufacturer, will supply the assembly equipment for the aperture blades—the mechanical components that actually do the opening and closing. This is not speculation about what Apple might do. This is a supplier already being lined up to build the parts. The fact that a specific company has been identified and tasked with producing the equipment suggests the feature has moved from wishful thinking into the early stages of production planning.

The appeal of variable aperture is straightforward in theory. By controlling how much light reaches the sensor, users gain more control over depth of field—the visual effect where a subject in the foreground appears sharp while the background blurs away. This is the bokeh effect that portrait photographers prize, and it's the reason professional cameras have aperture controls in the first place. On iPhones, Apple has tried to replicate this effect artificially through Portrait mode, using computational photography to blur the background after the fact. A variable aperture would allow the camera to achieve this effect more naturally, the way a real lens does.

But there is a significant caveat. Smartphones have much smaller image sensors than professional cameras, constrained by the physical size of the device. On a tiny sensor, the optical benefits of variable aperture may be subtle or even imperceptible. The improvement might exist in theory but not translate to noticeably better photos in practice. Kuo did not mention whether Apple plans to pair the variable aperture with a larger sensor on the iPhone 18 Pro models. Such an upgrade would be necessary to make the feature truly meaningful. Without it, users might gain the ability to adjust aperture without gaining much in return.

This is not the first time variable aperture has been rumored for an iPhone. At least one iPhone 17 model was expected to get the feature, but those plans apparently shifted. Kuo now believes the technology will debut on the iPhone 18 Pro instead, which is scheduled to launch in September 2026. By then, the supply chain will have had time to mature, the manufacturing process will have been refined, and Apple will have had time to decide whether a larger sensor makes sense alongside the new aperture mechanism. For now, the rumor is real enough that suppliers are already being contracted. What it will actually mean for the photos you take remains to be seen.