How to adjust the white balance in lighting portrait photography to take a good photo?

I have been engaged in photography for four years.

The landlord's problem involves the color temperature, which is generally 5600 calories (that is, the index of sunlight).

Below 5600 is a cool tone, and blue will appear.

Above 5600 is a warm color, which will appear yellowish.

If you want to take a picture with normal color, you must control the color temperature, so the camera needs to correct the color before shooting.

The easiest way is to take a piece of white paper and aim the camera at the white paper. The camera will automatically sense the color temperature of the scene at that time.