Over the past few years, Apple has steadily added pro-grade video capture capabilities to the iPhone’s camera arsenal. The ability to capture ProRes videos, support for Log format, and 4K 120 fps recording are now possible on the flagship iPhones. However, these files also take up a lot of space, so much so that Apple even limits the capture quality on iPhones with only 128 GB storage….

Check out the original article: [Slashgear]Can You Record iPhone Videos Directly To An External Storage Device?