iPhone 18 Pro gains adjustable aperture camera and photo verification feature
Developed over time first seen 2 months ago
Apple has given hands-on details of its new iPhone 18 Pro and iPhone 18 Pro Max, confirming a similar design to last year's models but with notable camera upgrades, including a variable-aperture lens on the main camera. The phones, unveiled at Apple Park, retain the aluminium body and screen sizes of the iPhone 17 Pro line but gain colour-matched glass backs and a smaller Dynamic Island capable of displaying three Live Activities at once. The camera system is the headline change, with new manual "pro" controls built into the native camera app, alongside a photo-verification feature designed to confirm images have not been digitally altered.
The variable aperture can be set automatically or fixed at one of four stops — f/1.48, f/1.8, f/2.8 or f/4.0 — giving users more control over exposure and depth of field, alongside manual settings for shutter speed, white balance and focus, the latter aided by focus peaking in the viewfinder. The Pro lineup comes in black, silver, "glacier" blue and burgundy finishes. Preorders for the iPhone 18 Pro and Pro Max open on 12 September ahead of release on 18 September, with prices starting at $1,199 and $1,299 respectively.
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In short
- iPhone 18 Pro and Pro Max detailed hands-on at Apple Park event
- New variable-aperture main camera with four selectable f-stops
- Preorders open 12 September; from $1,199, release 18 September
How this story developed
- 2 months ago Apple formally announced the same handsets, newly naming the authenticity tool "Reference Image" and detailing that it digitally signs individual pixels via Apple's Private Cloud Compute, while confirming the variable aperture chiefly boosts low-light and depth-of-field performance.
- 2 months ago Apple gave hands-on details of the iPhone 18 Pro and Pro Max, revealing a variable-aperture main camera, manual pro camera controls and a photo-authentication signing feature, alongside colour-matched glass backs, ahead of 18 September release with prices starting at $1,199.
Full account
Apple used a launch event on Wednesday to unveil the iPhone 18 Pro and iPhone 18 Pro Max, its latest premium handsets, which go on sale on 18 September following pre-orders opening on 12 September. The new phones are offered in four finishes — black, silver, a pale blue shade called "glacier", and burgundy — now with back glass colour-matched to the body. Inside sits a new A20 Pro chip built on 2-nanometre technology, said by Apple to bring a six-core processor with two high-performance cores and four efficiency cores, a seven-core graphics unit roughly 40 percent faster than before, and a second neural engine that brings the total neural processing cores to 32. Apple also pointed to a redesigned vapour chamber, three times larger than the outgoing model's, intended to keep the chip cool, and battery life it describes as the longest yet fitted to an iPhone, with the standard Pro model rated for 36 hours of video playback and the larger Pro Max for 45 hours. UK-equivalent US pricing starts at $1,199 for the 256GB iPhone 18 Pro — $100 more than its predecessor — and $1,299 for the entry-level 18 Pro Max, with both extending up to 2TB of storage.
The headline change, and the one most outlets chose to foreground, is a mechanical variable aperture on the main 48-megapixel camera, a feature Apple frames as its biggest photographic leap in several years. Rather than a fixed opening, six ultra-thin blades adjust how much light reaches the new sensor, widening in dim conditions to improve low-light shots and speed up night mode, or narrowing to extend depth of field and keep more of a scene sharp. Apple says the aperture can be left to adjust automatically or set manually within the camera app, reaching as wide as f/1.48. One outlet that had hands-on time with the device reported four selectable fixed stops — f/1.48, f/1.8, f/2.8 and f/4.0 — alongside new manual "Pro" controls covering shutter speed, white balance and focus, the latter aided by an on-screen peaking display to show what is in focus. These controls extend to video too, alongside the ability to shoot 4K time-lapse footage in Dolby Vision HDR, and Apple has also refined its photographic styles with added texture and grain adjustments.
Alongside the hardware, Apple introduced a verification system designed to prove a photograph has not been altered by artificial intelligence. Dubbed "Reference Image", the feature relies on the iPhone 18 Pro's new sensor to cryptographically sign the data it captures the moment a photo is taken, but only when the camera is deliberately switched into a dedicated Reference mode. That signed data is then processed through Apple's Private Cloud Compute into what the company calls an unalterable reference version of the image, viewable within the Photos app, where users can compare it against any subsequently edited copies to check what, if anything, has changed. Apple is positioning this as a hardware-rooted complement to existing content-authenticity efforts such as Google's SynthID and the C2PA standard, and says it will open a Reference Image API so other apps on iOS, iPadOS and macOS can eventually let people inspect these signed images too. Notably, the feature will not be available at launch in the European Union, though Apple has said EU users will gain the ability to create and view reference images once iOS 27, iPadOS 27 and macOS 27 arrive.
Beyond the camera and imaging authentication, the new Pro models otherwise closely resemble their predecessors, retaining the aluminium chassis and screen sizes of the iPhone 17 Pro line, with one hands-on account noting a slightly smaller Dynamic Island now capable of showing three Live Activities simultaneously, which the reviewer confirmed does work as advertised. Apple also used the event to emphasise how the new chip and camera system support Apple Intelligence and an updated, more expressively-voiced Siri. Putting the aperture feature in context, one report noted that variable apertures are not entirely new to smartphones: Samsung fitted a mechanical dual-aperture system, switching between f/1.5 and f/2.4, to its Galaxy S9 and S10 before dropping it from the S20 onward, while Huawei and Xiaomi have also experimented with the concept, including Xiaomi's 14 Ultra, which spans f/1.63 to f/4.0 — suggesting Apple is arriving relatively late to a feature rivals have already tried and, in some cases, abandoned.
Where outlets differ
From the full account, which is AI-written from the sources:
Pricing, colour options, chip specifications and battery figures were detailed in the general announcement coverage but omitted entirely from the report focused on the aperture feature, which instead concentrated on comparing Apple's approach to prior variable-aperture phones from Samsung, Huawei and Xiaomi.
Accounts differ on how granular the aperture control is: one source described it simply as reaching f/1.48 at its widest with automatic and manual modes, while a hands-on account specified four discrete selectable stops (f/1.48, f/1.8, f/2.8, f/4.0).
Only one report covered the Reference Image photo-verification feature in depth, including the detail that it requires a dedicated capture mode, runs through Apple's Private Cloud Compute, and will be delayed in the European Union until a later software update — none of the other reports mentioned the EU restriction.
The hands-on report was distinctly more informal and first-person in tone, including subjective impressions (e.g. praising the addition of manual controls, confirming the Dynamic Island's multi-activity view worked), whereas the other sources presented Apple's claims more neutrally as announcements.
Explained simply
Apple iPhones typically get a design refresh every few years, alternating with smaller updates in between; the iPhone 18 Pro and Pro Max fall into the latter category, keeping much of the previous model's look while focusing on internal and camera improvements. The "Pro" tier sits at the top of Apple's range, aimed at buyers who want the most advanced hardware, particularly for photography, and usually commands a higher price than the standard iPhone.
A variable, or "adjustable," aperture refers to a camera lens that can physically change how much light it lets in, similar to lenses on dedicated cameras, giving photographers more control over brightness and background blur. This is a feature phone cameras have rarely offered before, so its inclusion marks a shift toward more manual, camera-like control for mobile photography.
The photo-verification feature responds to a broader, ongoing concern about AI-generated and digitally altered images being mistaken for genuine photographs. By digitally signing images at the point of capture, it aims to let people check later whether a photo has been edited, a capability of growing interest to news organisations, courts and social media platforms.
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