How does the camera blur the background, just like a very virtual background taken by a camera with a large aperture? Please give me some advice.

If you want to shoot a blurred background, you need to focus on the camera, get close to the object, stay away from the background and turn up the aperture. The specific operation is as follows:

1. To eliminate the depth-of-field effect of background blur, we must first adjust the focus ring and focus the lens on the subject to be photographed.

2, then close to the subject, away from the background, orderly, subject and camera keep a distance of 2 meters, camera and background keep a distance of 5-6 meters.

3. Then adjust the focal length of the camera as large as possible to form the imaging effect shown below.

According to the camera photos you provided, the red frame is the focus ring, the blue frame is the aperture ring, and the green frame is the electronic shutter switch. When shooting, first adjust the focal length of the focus ring, and then adjust the aperture.

The small red box covers the gray film. If the exposure of the picture is too serious, you need to turn on the electronic shutter switch and gray film.