I am creating an iMovie project with around 500 photos, many of which were taken as live photos on an iPhone. I want to convert these to GIF files and stitch them together with a Ken Burns effect to create more of a movie than I would with still only photos. Can you suggest the most efficient process, please? Thank you for your inspiration, and keep up the good work.
Can this be carried out without third party software? Can the conversions be carried out as a batch or will each photo have to be converted one at a time? Will GIF files be sufficiently high quality for a movie on a large screen?
If your goal is to use the video portion of a Live Photo in iMovie, then you don't want to convert them to animated GIF images at all. There's no need for that intermediate step.
Just select the photo in the Photos app on your Mac. Then choose File, Export, Export Unmodified Original. This will export two files: an image and a video. Then take that video and drag and drop it into the timeline in iMovie.