What does photography mean?

The purpose of photography is to establish a photographic theme, such as scenery or humanities, urban scenery or rural customs, and collect materials related to the theme in cities, villages or nature. This form and activity is called photography.

Photography is an applied science of photography developed with the formation and development of traditional photography technology. Based on photographic optics, photographic chemistry and electronic technology, it has formed a unique shooting system in long-term practice. ?