Why it matters
It shapes how motion feels, whether lights flicker and how much you can slow footage down.
Example
30 fps for talking videos, 60 fps for action you might slow down.
Common mistake
Mixing frame rates in one video without meaning to, which makes motion stutter.
How to use it
Pick one frame rate per video and stick with it. Thirty is an easy default in places with 60 Hz power, like the US; 25 suits places with 50 Hz power, like most of Europe, and helps avoid flicker under indoor lights. Use 24 for a film feel, and shoot at 60 or more only when you plan to slow something down. A 60 fps clip played at 30 gives you half-speed slow motion.
