Excuse me, what is the use of P, S, M and A files on SLR cameras?

M-range manual control mode: M-range manual control mode is to manually adjust the shutter speed and aperture size, which is a bit complicated, less convenient than P, A and S modes, and not easy to capture, so it is rarely used at present.

The camera shooting mode M is a manual exposure mode. According to the needs of shooting, the aperture, shutter and sensitivity are all set by ourselves, and the sensitivity is generally lowered. The exposure effect is basically expressed by aperture and shutter. Suitable for shooting in extreme environments, such as backlight, special effects and so on. S file of camera shooting mode is a necessary mode of shutter.

Mode S (Shutter Priority Auto): The photographer chooses the shutter speed, and the camera automatically adjusts the aperture to get the best exposure. Mode A (Aperture Priority Auto) The photographer selects the aperture, and the camera automatically adjusts the shutter speed to get the best exposure.

"S" shutter priority exposure mode: Select S to control the shutter speed, and the aperture changes with exposure. Generally, the speed of shooting the motion shutter should be fast, and the speed of shooting the running shutter should be slow, in order to shoot the motion.

P file in SLR camera refers to program automatic exposure mode; A file refers to the aperture priority automatic exposure mode; S file reference shutter priority mode; M file refers to manual exposure mode; MP refers to a million pixels.