How to use a camera to take a picture of the unchanging scene and the fast moving clouds in the sky?

This is not a regular shooting, but a special way is adopted. Your camera needs to be set up. Generally, if the camera is PAL, it will shoot 25 frames a second. In order to achieve the effect you mentioned, we have to lower the number of frames per second to 2 or 1 frames per second, and then fix the camera so that it can only shoot a few frames per second. After shooting for a certain period of time, we will press it again. Of course, if you don't shoot the camera with the function one by one, it is also possible to achieve this effect. First, fix the camera to shoot the whole process, and then change the length of time in the editing software, for example, change the material of ten seconds to only five seconds (instead of cutting it into five seconds, the speed is changed to five seconds), and you will find that your video will become faster!