By This Hour Technology Desk

The iPhone 18 Pro’s variable-aperture main camera is reportedly capable of more incremental adjustment than Apple exposes in its own Camera app. Two third-party iOS applications, Blackmagic Camera and Moment Pro Camera II, offer 10 aperture presets across the phone’s reported f/1.48-to-f/4 range, rather than the four options available through Apple’s interface.

The distinction matters because the iPhone’s new hardware feature is not simply a matter of whether a photographer can choose a bright or dim aperture setting. It is also a question of how many intermediate choices the software makes available. For users who want to set exposure and depth-of-field characteristics with more precision, the reported third-party support suggests that the native Camera app’s four-position implementation is a software choice, rather than the outer limit of the camera hardware.

The available reporting describes a narrow but consequential difference in control. Apple’s Camera app reportedly offers f/1.48, f/1.8, f/2.8 and f/4 on the iPhone 18 Pro’s main camera. Blackmagic Camera and Moment Pro Camera II, by contrast, are said to fill in additional positions between the endpoints. That does not automatically mean every additional step will produce an obvious visual change in every image. It does mean photographers can make a more deliberate choice than the four settings in Apple’s app permit.

Apple’s four choices appear to govern automatic operation as well

Reports indicate that the same four-setting ceiling applies not only when a user selects an aperture manually in the native Camera app, but also when the app controls the iris automatically. That detail is important because it frames the limitation as more than a simplified manual control intended for casual shooting. Even when Apple’s software is making the selection itself, it reportedly works within the same limited set of positions.

In practical terms, that reported behavior leaves Apple’s app selecting among f/1.48, f/1.8, f/2.8 and f/4, rather than moving through the finer set of stops accessible in the other apps. The available information does not establish why Apple chose that approach. It does not say whether the company views four choices as preferable for speed, consistency, image processing, interface simplicity or another reason. Nor does it establish whether Apple intends to expand the built-in control later.

What the report does suggest is that users should distinguish the adjustable aperture in the iPhone 18 Pro’s camera from the aperture controls displayed by the default software. The hardware feature may have a wider usable range than Apple’s app presents. A person relying entirely on the native interface would encounter the four official choices; a person using a compatible third-party camera app could reportedly select positions that sit between them.

That gap changes the terms of the discussion around a variable aperture. Apple’s app still provides access to both ends of the stated range, from f/1.48 through f/4. But it skips over several points that outside developers have made available. The difference is therefore not about replacing one aperture range with a broader range. It is about increasing the number of increments inside the reported range.

Two apps take a 10-preset approach

Blackmagic Camera for iOS was reported to be among the first third-party options to support the iPhone 18 Pro’s adjustable aperture. Its implementation offers 10 presets, including settings that fall between the four positions Apple provides in its Camera app. The supplied report characterizes Blackmagic Camera as free, though app availability, pricing and feature support can change and are not independently verified here.

Moment Pro Camera II is reported to offer the same total number of presets. Its controls are described as moving from f/1.48 to f/4.0 in one-third-stop increments, resulting in 10 choices. The available source identifies Moment Pro Camera II as a $12.99 app. That price is source-bound information rather than an independently confirmed current listing, and prospective users would need to consult the relevant storefront before making a purchase.

The common 10-preset structure is notable because it indicates the two developers are not merely offering different labels for Apple’s existing four choices. They reportedly provide intervening positions. Moment’s stated one-third-stop arrangement also gives a clearer account of how its controls are divided: the application is designed to present smaller, regular adjustments over the same f/1.48-to-f/4 span.

The reporting says this approach resembles the preset-based method used by most digital cameras. That comparison should not be read as a claim that the iPhone 18 Pro and dedicated cameras produce identical results or offer the same broader set of photographic controls. It describes the arrangement of the aperture settings only: defined selectable steps rather than an unrestricted, continuously variable on-screen dial.

For someone deciding between these apps, the central confirmed claim in the available account is therefore similar for both: each reportedly recognizes the iPhone 18 Pro’s variable aperture and exposes 10 preset positions. The available material does not compare their respective interfaces, video controls, reliability, image processing, compatibility outside the iPhone 18 Pro or the results they produce at each setting. It also does not establish that their intermediate presets are identical in every respect beyond the stated count and range.

More adjustment does not guarantee a dramatic visual change

More available settings can be useful without being visually transformative in every situation. The source cautions that the iPhone 18 Pro’s small sensor may make differences in background blur and focus depth difficult to detect when photographs are taken only one-third of a stop apart. That limitation is central to interpreting the story. A menu with 10 positions offers more granular control, but the additional control does not by itself prove that each setting produces a plainly distinguishable result.

This leaves two ideas that can coexist without conflict. First, the third-party applications reportedly give photographers additional aperture choices that Apple’s native app does not. Second, the practical value of those choices may vary by image and may sometimes be subtle. Users seeking visible changes in background rendering or apparent focus depth should not assume that a smaller adjustment will always yield a conspicuous difference.

The gain may instead lie in selection itself. A photographer who finds Apple’s f/1.8 setting too close to one desired outcome and f/2.8 too close to another could, if the reported app support works as described, choose an intermediate option. That is a meaningful capability for a user who prefers to set the camera deliberately, even if the resulting difference is modest. Conversely, someone who generally lets the camera choose settings may find Apple’s existing automatic behavior sufficient.

The report does not provide side-by-side image evidence, testing results or measurements showing how each step affects exposure, blur or focus depth. It also does not establish how the phone’s other camera functions interact with a selected aperture. Those omissions limit any conclusion about image quality. The supported conclusion is narrower: two third-party apps reportedly provide a denser control scheme than Apple’s own app.

The software boundary is the larger question

The report attributes the expanded controls to Apple’s software-development tools, saying the company’s SDK permits third-party camera apps to implement more granular aperture adjustment. If accurate, that is the most significant point in the account. It means the apparent constraint in the default camera experience is not necessarily imposed by the iPhone 18 Pro’s aperture mechanism.

That finding places third-party developers in a familiar position: they can expose a more specialized control set for people willing to move beyond the default app. Apple’s Camera app may remain the straightforward route for users who want four defined options or automatic selection, while Blackmagic Camera and Moment Pro Camera II address a more particular demand for intermediate aperture presets.

The difference also raises a product-design question that the available reporting cannot answer. Apple may have chosen a limited set deliberately, but the source does not include an explanation from the company. Without one, it would be speculative to characterize the four-setting design as an error, a technical compromise or a permanent policy. The only supported comparison is the one visible in the reported controls: Apple offers four selections, while the two named apps offer 10.

There are unresolved practical questions as well. The supplied material does not say whether the third-party implementations operate equally well in all shooting modes, whether they affect every kind of capture, or whether future iOS or app updates could alter the controls. It does not establish whether Blackmagic’s and Moment’s options are available on any device beyond the iPhone 18 Pro. Those details matter for buyers, but they are outside the record provided here.

Apple has recently placed feature eligibility boundaries around other camera-related controls on its newest iPhones, as shown in its revised approach to Texture and Grain controls. That separate compatibility issue does not confirm anything about aperture behavior. It does, however, provide relevant context for why a distinction between camera hardware and the controls exposed in Apple’s software can matter to users.

The account of aperture control comes from a single secondary report and has not been independently corroborated. Apple, Blackmagic Design and Moment are not represented in the supplied material with direct comments explaining the feature behavior, its limits or its future plans. Until those points are independently verified, the most careful reading is that the apps are reported to offer finer iPhone 18 Pro aperture presets—not that every claimed setting or practical benefit has been conclusively established.

Reporting notes

What is confirmed: Blackmagic Camera and Moment Pro Camera II are reported to expose intermediate aperture settings. The supplied account does not provide independent testing.

Why this matters: The report suggests Apple’s native aperture controls are more limited than the hardware and SDK may allow.

What remains unclear: There is no supplied direct explanation from Apple or independent evidence comparing photographic results, compatibility or reliability. This report is based on one source and has not been independently corroborated.

Sources