Why does iphone slow motion grind skin?

Iphone will grind skin in slow motion, which is a special effect that comes with the mobile phone.

"Slow motion" shooting is an interesting and practical function in iPhone camera. When we turn on the iPhone camera, we can drag the options above the dot to find and use the "slow motion" shooting function.

When we turn on this function to shoot, the video will be recorded as usual, but we can see the effect of slow motion when playing back. At this point, you can also edit the video and start and stop playing slow motion at the time you choose.

In fact, the most common situation is that "slow-motion" photography will flash when the fluorescent lamp is turned on indoors or at night. This is because the frequency of fluorescent lamps is generally 50Hz, while the slow-motion video is 120 fps or 240 fps, so in this case, it is a normal phenomenon, not a device failure.