What are the camera exposure modes and how to set them?

1, aperture priority: aperture priority exposure is also called aperture priority automatic exposure, which is generally represented by "a" on digital cameras. The photographer chooses the appropriate aperture, and the digital phase automatically matches the appropriate shutter speed to achieve accurate exposure.

2. Shutter priority: Shutter priority is also called shutter priority automatic exposure, which is generally represented by S on digital cameras. Photographers choose the appropriate shutter speed, and the digital phase automatically matches the appropriate aperture size to achieve accurate exposure.

3. Program automatic exposure: Program automatic exposure refers to the mode of automatically adjusting the camera aperture and shutter speed. Convenient for quick photography and letting others take pictures. You can select all available shutter speeds and apertures of the camera by pulling the dial or button, and basically you can get acceptable exposure, just like using aperture priority or shutter priority mode to some extent.

4. Manual mode: In manual mode, the shutter speed and aperture setting are controlled by the photographer himself. Usually, the camera will provide a graphic or digital display to remind you of the difference between the exposure setting and the recommended exposure. A plus sign indicates that the exposure is higher than the recommended value, and a minus sign indicates that the exposure is insufficient.

By setting different aperture and shutter combinations, many unusual effects can be obtained. This mode is often used in photography creation, which requires a higher photographer.

Extended data:

Shooting effects of different gears:

1, fully automatic transmission

With automatic transmission, the SLR becomes a "fool machine": as long as you press the shutter, the camera will adjust three parameters according to the environmental conditions and then take pictures.

The fully automatic file is very suitable for those scenes that don't require high pictures but take a lot of pictures, such as tourist photos and street shooting. The photos taken can basically be said to be relatively dull, but generally there will be no big problems.

2.Av file (or A file)

Aperture priority mode, as its name implies, is that you can set an aperture value first, then the camera calculates it, and then adjust the shutter speed and sensitivity to achieve correct exposure.

Using this mode, you can manually set a large aperture value and take this kind of "clear front and fuzzy back" and full of sugar water photos.

On the contrary, when shooting a large range of scenes, choosing a small aperture can make most of the pictures in a clear range; When shooting at night, you can choose a small aperture to capture the effect of Starlight Glimmer.

It should be noted that when using a small aperture, the camera often only considers "whether the exposure is normal", and does not consider whether this shutter speed will lead to hand shake and blur.

Therefore, when shooting or using a telephoto lens with a small aperture in a low light environment, it is best to use a tripod or appropriately improve the sensitivity.

Av file is called "the most suitable gear for beginners" because it involves the basic settings of depth of field control and exposure combination, which is convenient for beginners to explore slowly, accumulate experience and improve their level.

3. TV files (or S files)

Contrary to the aperture priority mode, the principle of TV gear, namely shutter priority mode, is to set a shutter speed manually first, and then the camera adjusts the aperture value according to the environmental conditions.

This mode can control whether the picture elements are dynamic or static according to the creative intention.

You can use a high-speed shutter to freeze the wonderful moments. For example, when shooting a snow scene, use a high-speed shutter to "freeze" the snowflakes flying in the air.

It should be noted that the use of high-speed shutter may make the aperture value become very large, the depth of field become very shallow, and the photo will be too blurred; If you want to use an ultra-high speed shutter, you usually use a flash to fill the light.

Low-speed shutter tends to record the trajectory of the object, making the object dynamic. Can turn traffic into light rail; Turn the Ferris wheel into colorful building blocks.