/kloc-how far can you shoot with 0/0 times optical zoom? How far can a scene be shot 20 times? How much is 30 times? Safe.

Because light generally travels in a straight line, both the naked eye and the camera can see infinity, and the zoom ratio has nothing to do with it. Zoom 10 times means that the object in the picture can be magnified ten times, zoom 20 times means that the object in the picture can be magnified twenty times, and so on. Clarity is not only related to the lens, but also to the air quality. If the lens is good enough and the air is good enough, everything will be clear when the lens is 100 times or 1000 times.