What is the difference between programmed automatic exposure (P) and automatic mode in Canon SLR cameras?

1. Automatic program exposure: When in use, as long as the function of shooting the same scene at that time is cut off, the camera itself will automatically adjust the shutter speed and aperture according to the design to obtain the best shooting mode in different situations, and the photographer only needs to aim at the target to shoot.

2. Automatic mode: the camera automatically adjusts the exposure according to the light intensity to prevent overexposure or underexposure.

Second, the characteristics are different.

1, automatic exposure: the camera can not only calculate the appropriate exposure according to the light conditions, but also automatically select the appropriate exposure combination.

2. Full automatic mode: Enjoy brightness level or so-called target brightness level under different lighting conditions and scenes, so that the captured video or image is neither too dark nor too bright.

Third, the rules are different.

1. Program Automatic Exposure: The camera can automatically set the shutter speed and aperture value according to the exposure value of the shot picture measured by the metering system and the combination of shutter and aperture exposure set by the manufacturer during production.

2. Automatic mode: When using the aperture priority function, especially when the aperture is small, it should be noted that the shutter speed will be lowered accordingly, and the camera will be stable to prevent the image from being unclear.

Baidu encyclopedia-automatic program exposure

Baidu encyclopedia-automatic exposure