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I Tried the iPhone 18 Pro’s New Deluxe Camera and Shot Photos With Starbursts

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Why This Matters

Apple's iPhone 18 Pro adds a variable aperture main camera, bringing a hardware capability normally found in dedicated cameras to the iPhone line. It lets users choose among four f-stops (or let the phone decide) for sharper stopped-down shots, brighter low-light captures, and optical starburst effects. It signals that smartphone camera differentiation is shifting back toward physical optics rather than software processing alone.

Key Takeaways
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While the iPhone 18 Pro and Pro Max are among Apple’s newest phones, they are the ones that don’t fold. Thankfully, a handful of upgrades, like a fancy new camera tool, will make photographers rejoice!

I tried the iPhone 18 Pro in a packed demo area in the Steve Jobs Theater at Apple Park right after the company’s “Surprise and shine” event. Admittedly, it wasn’t the ideal environment for photographic testing. But I was later able to take some photos and videos using the new variable aperture, in a calmer setting that showed off its potential. I now understand what the “shine” in the event’s name referred to.

Think of a camera’s aperture like your eyelids. When your eyes are wide open, they let in more light. Under the bright sun, you squint to reduce the glare and see better. A variable aperture does the same for a camera lens. There are tiny blades that open and close to let more light onto the image sensor, or to reduce exposure in a bright scene.

Most phone cameras have a fixed aperture that can’t be adjusted. But the iPhone 18 Pro acts more like a dedicated camera, letting you stop it down for sharper images or, in dark environments, open the aperture wide to capture a brighter scene.

I was even able to achieve starbursts, thanks to the physical aperture blades. If there’s a bright light source in your shot, like string lights, you can stop the aperture down to add light peaks. The effect is caused by the way the aperture blades meet.

In terms of how it works, there’s an auto setting that lets the phone pick the best aperture. But you can also set it manually, choosing between four f-stops, which determine how wide the aperture’s opening is set.

The iPhone 18 Pro isn’t the first phone with a mechanical aperture. I remember shooting photos in 2018 with the Galaxy S9, which had a dual-aperture camera. Xiaomi’s 14 Ultra had a stepless aperture that let you stop anywhere between f/1.63 and f/4.0. The iPhone 18 Pro has fours stops: f/1.48, f/1.8, f/2.8, and f/4.0.

While I think professional photographers, filmmakers and other creative types will enjoy it most, a variable aperture isn’t enough of a reason for most people to buy an iPhone 18 Pro, especially if you’re just posting pics on social media. Just get the iPhone 17, especially since the iPhone 18 Pro now starts at $1,199 and the 18 Pro Max at $1,299, a $100 more than the 17 Pro and Pro Max from last year.

So what else did I think from my hands-on time with the new Apple phones?

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