Why does strong light hurt the camera? How to avoid this kind of injury? Like when you shoot an arc with a camera?

Strong light will directly damage the CCD of the camera. Early cameras were all electron tubes. It was forbidden to shoot the sun at that time, because it would burn out the electron tube.

But it's much better for the camera now, but try not to shoot strong light. This may directly break the dynamic balance range of CCD and crystallize the picture. At the same time, the possibility of burning CCD is not ruled out.

The best way to avoid this situation is to increase the gray spots in front of the lens and reduce the luminous flux to solve this problem.