Apple’s Final Cut Camera 2.4 opens the iPhone 18 Pro iris and adds pro-focused outputs and tools

Apple has pushed a major update to its capture app, releasing Final Cut Camera 2.4 with a rebuilt capture workflow and features aimed at people shooting serious video on iPhone hardware. The update gives camera operators direct control over the mechanical iris in Apple’s latest Pro phones, brings pro monitoring and genlock options, and expands the Mac-side post tools that work with iPhone footage.

The headline change is manual iris control for the main camera on the iPhone 18 Pro and iPhone 18 Pro Max. Apple’s documentation makes it clear that the 48MP Fusion Main camera uses a six-blade mechanical iris with settings of f/1.48, f/1.8, f/2.8 and f/4.0 at a 24mm equivalent focal length, and the new app surfaces that iris as a user-settable control. When you switch exposure from Automatic to Manual on a supported phone, an Aperture dial appears beside Shutter and ISO so you can pick a specific f-stop rather than letting the phone choose it.

Alongside full manual exposure, the app adds two priority modes. In aperture priority you choose the f-stop and the software holds exposure by altering shutter speed and ISO; in shutter priority the shutter angle or speed is fixed while the app moves aperture and ISO to keep exposure stable. That gives operators the familiar choices found on cinema cameras when they want either depth-of-field control or motion-streak consistency.

Apple also rebuilt the app’s capture interface to make core camera settings quicker to reach. Shutter angle, ISO and white balance are grouped for faster adjustment, a tally light appears during recording, and a two-finger tap hides the controls for a clean viewfinder. Focus peaking now includes a sensitivity setting, and the exposure toolset expands to include false color and a clipping indicator with adjustable thresholds. The update adds scopes too, including an RGB Parade and a histogram, bringing more conventional monitoring tools to phone capture.

On the output side, Final Cut Camera 2.4 takes aim at both streamer and broadcast workflows. With iOS 27 the app exposes a clean HDMI path described by Apple as "preview-quality output suited to live streaming and user LUT monitoring", available at either 4K or 1080p regardless of the phone’s internal recording settings. For higher-end signal chains it introduces SDI Clean, which Apple positions for "broadcast-quality video, external recording, metadata output and minimal preview latency." Those two output options let a single phone drive either a low-latency preview or a proper program feed for outside recorders and switchers.

The update also brings a genlock frame-delay feature to help line up the phone frames with an external reference. Apple added a frame delay control that offsets when the shutter is triggered relative to an incoming reference; the offset is adjusted with a slider while watching the preview and can be expressed in subframes or microseconds. Apple’s notes clarify that subframes are counted as "1/100 of a frame’s duration," so the actual timing value depends on the frame rate in use.

Final Cut Camera 2.4 doesn’t stop at capture and monitoring. Apple updated its desktop tools in parallel: Final Cut Pro 12.4 gains the ability to apply Cinematic mode effects to any video recorded with the iPhone 18 Pro or iPhone Duo, even if the clip was not captured using Cinematic mode originally. That processing requires macOS 27 to use the Cinematic feature, while the Final Cut Camera app itself runs on macOS 26.6 or later.

Taken together, the changes create a more complete mobile production ecosystem. Camera operators who already use an iPhone 18 Pro as a pocket camera can now dial aperture like they would on a mirrorless or cinema lens, monitor and scope the signal for broadcast or streaming, and line the phone up to other gear with a genlock offset. On the Mac side, editors get new tools to emulate or extend the phone’s depth-of-field treatments during post.

Apple’s user guide notes the aperture controls have a platform requirement: they need an iPhone 18 Pro or later running iOS 27 or newer. The company also calls out the intended roles for HDMI Clean and SDI Clean, and documents the frame-delay control and its units. Final Cut Camera 2.4 ships alongside Final Cut Pro 12.4 as part of the company’s concurrent update cycle.

For operators in studios and live environments, the SDI Clean output and genlock offset will be the most consequential additions: SDI Clean is intended for external recorders and broadcast systems that need low-latency, metadata-rich feeds, while HDMI Clean provides a convenient preview for streaming or LUT checks without changing the recorded file’s format or settings.

Photographers and filmmakers who want to control depth of field on the phone now have a direct tool to do so, and the priority modes allow for familiar photographic trade-offs. Focus peaking sensitivity and the expanded exposure helpers make it easier to judge critical exposure and focus in challenging lighting. And on the Mac, the ability to run Cinematic-like processing on more clips broadens editing options for projects that mix phone footage with other cameras.

Apple’s release notes and guide contain the technical details about which devices and OS versions support the new controls and which Mac OS is needed for the Cinematic features. The company’s description of the App Store update states: "Final Cut Camera 2.4 is available now as a free update on the App Store." Final Cut Pro 12.4 for Mac is also available now.

If you’re integrating an iPhone into mixed-camera shoots, the new monitoring and genlock features reduce the amount of post-alignment and provide a more reliable live feed. If you’re primarily a solo shooter or a mobile content creator, the manual iris plus priority modes give you creative control that used to require an add-on lens or an ND filter to manage exposure while preserving motion cadence or depth of field. Apple’s documentation even highlights workflows that avoid extra neutral-density glass by giving you direct aperture control.

Expect third-party capture and monitoring apps to continue evolving, but with Apple exposing the iris and adding standardized clean outputs and a frame-delay control, the phone itself becomes a more flexible node in both live and recorded pipelines. For users who already own the required hardware and run the necessary OS versions, the update packages a set of professional capture and monitoring tools into a free app update and companion Mac update.