Definition of snapshot

When we watch a movie, under normal circumstances, the switching frequency of the movie projector and the camera is synchronous, that is, 24 shots are taken every second, and 24 shots are also taken every second during the screening. At this time, the normal speed appears on the screen. If the photographer slows down the shooting frequency when shooting, when it is lower than 24 frames/second, there will be a quick action on the screen during the screening, which is also called "snapshot". If the fast-moving lens is used properly, it will produce an exaggerated comedy effect. For example, film a slow horse at the speed of four or six films per second, and then show it at the normal speed of 24 films per second, and the picture of this horse running fast will appear on the screen. Of course, if we speed up the shooting frequency, such as shooting 48 shots per second, then when we are showing, it will still be 24 shots per second, and there will be slow motion on the screen, which is also commonly known as "slow motion". Slow motion has special significance in film and television modeling. It can artificially "delay" the action rhythm and "extend" the action time, so that the audience can see clearly some action processes that are invisible under normal circumstances. Therefore, pudovkin called slow motion a "close-up of time", which is a way to consciously guide the audience's attention.