Problem：
Ripples appear in phone shooting computer, projection, TV screen, etc.
Problem causes:
The image of the screen is scanned by the electron beam on the screen frame by frame but its speed is relatively fast, and the human vision has a short stay effect, and our eyes look like a smooth and complete picture. When using the camera to shoot the screen, the scanning speed of the two is different, and there will be ripples on the shooting screen, which is also widely known as the "moiré display effect" in the electronics/display industry. This is a normal phenomenon, please use it with confidence.