Introduction to slow-motion photography

This refers to taking photos using a shutter speed of less than 1/30 second. By shooting at slow speed, moving objects can leave moving images on the film at the moment of exposure. To a certain extent, this kind of image is a virtual image. The faster the speed, the more virtual the image becomes, thus forming the effect of virtuality contrasting with reality, virtuality within reality, and virtuality and reality reflecting each other. This is what people often say, to shoot with movement and life in the picture.