Does photography mean taking pictures or videos?

Photography means taking pictures. Photography refers to the process of recording images with some special equipment, also known as photography, that is, the process of exposing photosensitive media through the light emitted or reflected by objects. Photography is mainly divided into still life photography, portrait photography, documentary photography, artistic photography, photo photography, commercial photography and so on.

When taking pictures, light enters the cassette through a small hole (more often, a lens group) and forms an image on the medium on the back of the cassette (relative to the incident direction of light). According to the actual light intensity and the photosensitive ability of the medium, the required light time is also different. In the process of illumination, the medium is irradiated by light. After photography is completed, the image information stored in the medium must be re-read by human eyes through conversion, and the specific method depends on the photosensitive means and the characteristics of the medium.

People use visible light to take pictures. The equipment they often use is a camera. Due to different scenes and uses, there are many kinds of cameras, but the necessary components are photosensitive medium, imaging lens, exposure time control mechanism, film cassette, storage medium, electronic photoreceptor, electronic storage medium and so on.