If you have never heard of Optical Flow in Final Cut Pro X you might be missing out on a great way to smooth out your slow motion video. This has quickly become one of my “go-to” features if I am needing to slow down my 60p or 120p footage more than I should.
Optical Flow works by creating individual frames in between the actual frames of your footage. Instead of repeating the frames or attempting to blend them together, Final Cut Pro X creates brand new frames based on the actual content of your footage. This makes for extremely smooth playback and makes your footage look like it was shot on a super high-speed camera.