Photography is an objective reflection of reality. When the shutter is pressed, the moment of the event is recorded. Because of the photos, the world has become a series of factors that are not related to each other. The camera denies the continuity and relevance of the world, while giving each moment a mysterious character. In this way, the appearance of the camera has affected the development of the style of painting. It is precisely because the camera is a slice of reality, so when people get a photo, the photo is actually taken out of his original life reality. Put this photo into a new environment. When the audience interprets the photo, there will be a lot of interpretation of a photo, which will lead to the ambiguity of meaning. John Berger attributed this reason to the moment when the recorded moment was in contact with the current audience, and there was an insurmountable gap between the two moments.