Ask for advice: How does a SLR camera (Nikon D80) take dynamic photos of people in the shade?

I suggest you start with AV mode and aperture priority mode.

ISO sensitivity is always adjusted to the lowest, such as 100. The higher the adjustment, the worse the image quality.

Wide-angle end, take a panoramic view of many people, pay attention to the angle and composition, and shoot with a small aperture. If the light is dim and the shutter speed is too low, you can consider a tripod.

The telephoto end, shooting a single person, pay attention to the position of the viewing angle, pay attention to the angle, shoot with a large aperture, focus with the center in focus mode, and find the individual's eyes at the focus.

Avoid shooting on sunny days between noon and 3 pm.

It is best to shoot in the morning or the next night.