Product1 publisher2 min readPublished
The iPhone 18 Pro's variable aperture buys about half a stop of light
Apple's new moving aperture opens to f/1.48 and closes down to f/4. The Verge's review finds the image quality gains marginal on a phone that still fits iPhone 17 Pro cases and costs $100 more than last year's.
The Product Desk · Product desk
What happened
- The iPhone 18 Pro's main camera has a moving aperture that opens to f/1.48 and stops down to f/1.8, f/2.8 and f/4, where earlier iPhones were fixed at f/1.8.
- The body is close enough to the iPhone 17 Pro that the same cases fit, and The Verge's review reports no surprises in using it.
- Manual exposure controls arrive in Apple's native camera app, which The Verge lists as a good point, alongside a complaint that the controls themselves are tiny.
- Inside, a revamped thermal management design lets the new A20 Pro chip sustain full performance for longer.
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Why it matters
- cost A 200-handset refresh pays $20,000 in uplift before storage upgrades, for gains the reviewer files under marginal. The accessory line of that budget stays at zero, since last year's cases still fit.
- decision An annual refresh now needs a photography justification to survive review. Without one, The Verge's own advice points the buyer at a discounted 17 Pro instead.
- capability Locked manual exposure now ships on the device itself, so a team that needs consistent exposure across a set of shots can get it without distributing a separate camera app, if it can live with small on-screen controls.
Open the new aperture all the way and it passes about 1.5 times the light of the f/1.8 lens it replaces, a little over half a stop [16]. The Verge's reviewer compared detail in shots at f/1.48 and f/1.8 and could see a difference, but called it subtle, and described the low light gains as pretty minor overall [14]. Background blur, the other reason photographers pay for a wide aperture, barely moves. A phone's lens and sensor are small enough that most of the scene is in focus at f/1.8 already [12], and the step to f/1.48 does not change that much [13].
Closing down covers more ground than opening up. At f/4 the lens passes roughly a seventh of the light it does at f/1.48, a range of about 2.9 stops [17]. The Verge got sunstars out of the narrow end and liked them [18]. The clearest gain with a stated cause is Night Mode, where f/1.48 lets the system finish a capture in slightly less time than f/1.8 needed [11].
Then the money. The review reports the phone as $100 more expensive than last year's without giving its price [4][19], and lists the higher storage tiers as "quite pricey" [5]. On a 200-handset order, the uplift by itself is $20,000 [20]. What that buys, in the same review's words, is marginal improvement in image quality [8].
Apple's launch event belonged to the foldable iPhone Duo, which arrives next month, leaving the 18 Pro as the second-most interesting iPhone Apple is shipping this year by The Verge's count [15]. The review's summary of the Pro is "excellent and utterly iterative" [10].
Two things settle a fleet order here: whether anyone in the organisation ships a photograph as a deliverable, and how many usable 17 Pro units are already sitting in drawers. Where the answer is yes and few, the 18 Pro goes to the people holding the camera. Where it is no and many, the $100 per unit is paying for a subtle difference in low light detail [14].
What to watch
- Independent sustained-load testing of the A20 Pro and the new thermal design, which this camera review does not measure.
- Whether iPhone 17 Pro discounts appear, since The Verge's fallback advice depends on finding one on sale.
- The foldable iPhone Duo's arrival next month, and whether it is manageable enough for fleet deployment.