ELI5- why do screens/lights flicker in videos taken by phone or even yt vids, but not in movies and professional productions?

Question

ELI5- why do screens/lights flicker in videos taken by phone or even yt vids, but not in movies and professional productions?

In: 674

Answer 1

Because they change the setting on their camera to compensate.

Screens are just strobe lights that’s are so fast you can’t see them turn off. So the flashing screen on a camera is because you hit the timing just right. A refresh rate for most screens is 60 per second, and cameras are 30 frames per second.