iPhone 18 Pro Max variable aperture transforms smartphone photography
Apple's new physical f-stop system on the 48MP main lens marks a major shift from software-based portrait modes.
What to know
- iPhone 18 Pro Max features a physical variable aperture (f/1.48–f/4.0) on its 48MP main lens, with interlocked blades thinner than human hair—a hardware shift from prior software-only portrait modes.
- Early testing shows the hardware aperture produces noticeably superior depth-of-field effects compared to software portrait processing, especially at wider apertures.
- The variable aperture is limited to the main 48MP lens; the telephoto and ultrawide cameras retain fixed apertures (f/2.8 and f/2.2).
“The Main camera has Auto, ƒ/1.48, ƒ/1.8, ƒ/2.8, ƒ/4.0. That's a wide range. It's not quite DSLR-level, where you can stop down to, say, ƒ/11, which can be useful for deep focus and for capturing ultra-bright objects like the moon at night.”
TechRadar reviewer · TechRadar ↗
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TechRadar's hands-on test shows variable aperture transforms iPhone photography
A TechRadar reviewer tested the iPhone 18 Pro Max's variable aperture and compared it directly to the existing software-based portrait mode. The physical aperture system, particularly at f/1.48, produced noticeably superior depth-of-field effects compared to software processing, with visible bokeh even in bright daylight conditions.
“The iPhone 18 Pro Max main camera's new variable aperture is a huge deal and, in my limited experience, I can already see that it could transform iPhone photography.”
— TechRadar reviewer -
first by TechRadar, 3d ago
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Apple announces iPhone 18 Pro with variable aperture camera
Apple revealed the iPhone 18 Pro and Pro Max with a new variable aperture system on the main 48MP lens, alongside expanded Pro-level camera controls. The aperture features physical interlocked blades thinner than a human hair and can adjust between f/1.48, f/1.8, f/2.8, and f/4.0.