Mix different video resolutions
Shoot and combine HD and 4K footage in the same iMovie project
Your iPhone, and gadgets such as the GoPro Hero 6 Black camera, can record video footage at different resolutions and frame rates. The iPhone’s default video recording resolution is 1080p HD at 30 frames per second (fps). This footage looks excellent on TV and YouTube.
However, you might want to drop the resolution to 720p HD, to save storage space, for example. This smaller HD resolution will still look okay when viewed on social media, but may look fuzzy when combined with higher resolution files in an iMovie project.
You can also record slow-motion (slo-mo) clips on your iPhone using the 720p HD resolution. This is worth doing to benefit from a higher frame rate of 240fps, which ensures smoother motion in a slo-mo sequence than you’d get by simply slowing down a standard 30fps clip, or even the highest quality 1080p option of 120fps. Slo-mo clips enable you to portray an event or action in a visually artistic or poetic way, without jarring jumps between frames.
Shooting 4K gives you footage with a very high resolution. When you use a 4K clip in a 1080p HD iMovie project, you can crop it to zoom in without creating fuzzy-looking pixels. You can also add Ken Burns zoom and pan effects.
In this walkthrough, we’ll talk you through how to shoot a range of differently sized clips and then combine the different resolutions into a consistent 1080p HD project.
Different resolutions can be combined in iMovie. Make sure you set the final resolution when editing’s done.