How to set parameters when shooting portraits in SLR A file?

A or AV file is aperture priority mode, which means that the aperture value is set by yourself, and the shutter speed is calculated by the camera according to the surrounding environment.

If your focal length is set to 55mm, you need to ensure that the shutter speed is at least 1/60S to ensure a clear portrait photo. Adjust the following parameters.

1, adjust the exposure compensation. If the surrounding environment is dark, you can use the exposure compensation function to make fine adjustments to make up for the lack of light.

2. Adjusting the ISO value and appropriately increasing the ISO value can also increase the shutter speed and ensure the clear photos. However, it should be noted that if the ISO is too high, there will be too much noise in the photo, which will affect the overall beauty of the photo.

3. It is best to choose RAW or NEF format as the photo format. This format has a large space in the later stage, even if you are underexposed, it may be too late.

Extended data:

Generally, the operation modes of SLR cameras are P (program automatic), S (shutter priority automatic), A (aperture priority automatic) and M (manual). Different modes can be adopted according to different usage scenarios and personal usage habits, which can achieve better results.

P file means that the camera automatically calculates the best shutter speed and aperture according to the surrounding environment.

S-file means fixed shutter speed, and the camera calculates the aperture according to the amount of light entering.

A file means a fixed aperture size, and the camera calculates the shutter speed according to the environment.

M-file means that users can decide the aperture and shutter independently according to the actual situation, which has great freedom, but it also requires a higher overall quality of the photographer.

Source: Baidu Encyclopedia-SLR camera