How to set the parameters of portrait shooting at night? How to shoot the light?

Parameter setting methods for portrait shooting and night lighting shooting;

1, set the camera to AV file, that is, aperture priority mode.

2. Then set the maximum aperture, with the aperture adjusted to F3.5 and ISO adjusted to 400.

3. Take a night scene photo randomly with AV file, and record three parameters: aperture, shutter and sensitivity.

4. Then set the camera to M, the shutter to 1/5, the aperture to F3.5 and ISO400.

5. Finally, set the focus to single focus, just press the shutter to focus on the face of the person, and the shooting parameters of portrait shooting and lighting at night are set.