eli5 how the background is in focus in videos, but blurry in photos with wide aperture

Question

eli5 how the background is in focus in videos, but blurry in photos with wide aperture

In: 2

Answer 1

If you’re filming at 25 frames per second, you don’t need a particularly fast shutter speed. That sort of time scale would be regarded as a fairly slow shutter setting on a camera.