Flickering in video and film is a common problem resulting from certain frame rate and shutter speed combinations under artificial lighting.
How do you make a video flicker?
https://www.youtube.com/watch?v=T5Vdu65y1Mc
How do I stop my video from flickering?
In general, the intensity of flickering can be decreased by using a slower shutter speed. Similarly, the flicker frequency can sometimes be decreased by using a shutter speed which is as close as possible to a known safe shutter speed.
What is flicker reduction in video?
Flicker is a distracting repeated change of brightness. It can occur for many reasons, such as difference in the light frequency and frame rate , flickering light sources, aggressive video compression , etc.