As the iPhone 13 Pro and Pro Max only support wired transfer with Lightning, moving that much data off through a connection that only supports USB 2.0 speeds could be a serious slog. Whatever the case, one issue that is sure to come up is getting footage off the phone and onto an editing device. Basically, shooting ProRes at 4K on a lower capacity device would quickly eat up the entire storage capacity of the phone. Filmmakers of all levels who are shooting in 4K have come to expect the need for high-capacity memory cards and SSDs, but it’s possibly a different story for iPhone shooters.Īs noted by DPReview, this high rate of storage consumption may be why Apple will limit ProRes recording on the 126GB capacity iPhone 13 Pro models to 1080p and reserve 4K ProRes recording for the higher capacity models. The jump to 6GB per minute of footage would not be as notable if the iPhone had support for expandable or external storage like full-size standalone cameras do. Officially, Apple says ProRes 422 HQ has a target data rate of approximately 220 Mbps at 1920×1080 and 29.97 frames per second, but does not list expectations for 4K data rate. That 4GB per minute of ProRes was more in line with what video professionals might expect coming from standalone cinema cameras, as forum conversations from a few years ago cite about 4GB per minute of 4K 10-bit footage in ProResHQ on BlackMagic cameras. “ProRes capture is only supported for up to 30fps at 1080p and 4K”.
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