Apple's iOS 17 Release Candidate build that was released yesterday includes code that reveals the new requirements for recording ProRes video with an iPhone 15 Pro directly to external storage.
During yesterday's event, Apple said that the iPhone 15 Pro could record up to ProRes 4K at 60 fps to external storage thanks to the new USB-C port. The code reveals that ProRes 2.8K at 60 fps is also supported when recording to external storage devices. This is a significant improvement over the iPhone 14 Pro, which only supported ProRes 2.8K and 4K at 30 fps, and did not allow for recording directly to a storage device. Also, according to the code, external storage devices must be formatted to either exFAT or APFS for this feature to work, but there is no word on whether there are disk speed requirements.
ProRes is a high-quality video codec that is often used by professional filmmakers, and video recorded in the ProRes format takes up a lot of storage space. Recording 4K 60fps ProRes video is a feature that Apple was only able to add because of the new A17 Pro chip and the option to connect to an external storage drive.
The external storage requirement for recording 4K 60fps video prevents iPhone users from filling up their onboard storage, and the formatting requirements prevent users from experiencing poor performance when recording to external storage devices. Users who want to record ProRes video to an external storage device will need to make sure that the device meets Apple's requirements.
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Apple is expected to launch a new foldable iPhone this year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that Apple will release its first foldable device in 2026.
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Below, we've collated an updated set of key details that have been leaked about ...
Sunday February 22, 2026 9:48 am PST by Joe Rossignol
In his Power On newsletter today, Bloomberg's Mark Gurman said Apple will have a three-day stretch of product announcements from Monday, March 2 through Wednesday, March 4. In total, he expects Apple to introduce "at least five products."
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Thursday February 19, 2026 7:38 am PST by Tim Hardwick
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macOS 26.3 hints at Apple's rumored lower-cost MacBook, and two new Studio Display models, according to Macworld's Filipe Espósito.
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J427:...
Wednesday February 18, 2026 5:12 am PST by Tim Hardwick
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth...
Matter of fact oppenheimer (or barbie, I'm not too sure) was shot exclusively on iphone
Sorry. While iPhone Pros' cameras are impressive, Oppenheimer was shot entirely on IMAX 65mm and Panavision 65mm film using some of the highest-resolution film cameras available. Barbie was shot on an Ari Alexa 65 (kind of the iPhone of the filmmaking world). 😉
What are y'all filming with prores 4k 60fps to external drives anyway? grand ma napping in the couch on xmas eve?
Didn't you see apple marketing videos feature filmographers? Many cinematographers use iphones to film their movies thanks to apple's incredibly powerful cameras
Matter of fact oppenheimer (or barbie, I'm not too sure) was shot exclusively on iphone