First, the subject is different. 1, upgrade photography: it is a kind of variable-speed photography. A cinematographic method to obtain a special screen effect. 2. Editing and upgrading: the video is processed by post-software. Second, different ways 1, upgrade shooting: when shooting, the running speed of the film is higher than the normal rate of 24 frames per second, which can be increased to 48 frames per second or even 300 frames per second according to the requirements of the artistic effect of the picture. 2. Edit and upgrade: use software to make adjustments, which does not involve physical changes. Third, the effect is different. 1, upgrade shooting: At the normal rate of 24 frames per second, the actual running process can be very slow, even ultra-slow. The lens shot with this square. 2. Clip upgrade: The effect of clip upgrade is lower than that of upgrade shooting.