What are the main points of photography?

Three elements of photography: exposure, focusing and composition.

Exposure; expose

By focusing and adjusting the shutter speed, the appropriate exposure can be controlled. Most digital cameras can control exposure by auto-focusing and adjusting shutter speed. This is the function of automatic exposure photography (AE). Although it is called automatic exposure, it can't be adjusted to the most appropriate exposure every time. Sometimes the picture will be too dark (underexposed) and too bright (exposed transition). When this happens, the function of correction is exposure correction.

concentrate

The human eye will automatically focus on what it wants to see, so that we can see everything clearly. The lens of the camera will focus more vividly on the object to be photographed. The focal length is adjusted through the lens, while the digital camera has the function of automatically adjusting the focal length. This is the automatic focusing (AF) function. Although you can focus automatically, it is up to the photographer to decide which point to focus on.

composition

The human eye can watch up, down, left and right continuously. But photos can only be observed and recorded from a rectangular range. Through the viewfinder or LCD, a very small part is selected as the shot picture in a large range, which is called framing. Recently, cameras are gradually developing towards automatic exposure and autofocus. However, no matter how the technology develops, it is impossible to fully automate the framing. So composition is the most important factor.

The application of photography in different places will also involve other factors, such as photography theme, photography concept and so on.