In the video, a person is holding a smartphone and using the camera application to take pictures. The person is adjusting the camera settings, such as the shutter speed, aperture, and ISO, to capture the perfect shot. The camera app displays the settings on the screen, and the person is seen adjusting them to achieve the desired effect. The person then takes a picture of a group of people sitting on a bench, and the camera app shows the photo on the screen. The video demonstrates how to use the camera app to adjust settings and take photos.