How to shoot a clear foreground portrait, and the effect of background light spot is manual focusing or automatic focusing?

Both manual and autofocus are available.

Shooting skills, grasping the distance is the key.

The basic principle of shooting such an effect must be known to friends who have a little photography foundation. Earlier, Lao Lang said three basic principles: large aperture, short distance and long focal length. The first point, large aperture, is easy to understand. The larger the aperture, the more obvious the effect. For example, the aperture of F 1.2~F5.6 can produce this effect. But as long as the large aperture is not enough, the key is to grasp the shooting distance.

Second, close range. Here refers to the focal length from the subject. The closer to the theme, the deeper the money. But it should be noted here that not only the subject image should be clear, but also the circular effect of the background should be made to form the circular effect of light spots. At this time, the farther away the background light source is from us, the easier it is to form a circular effect.

The shooting distance is long and the effect is not obvious?

Shorten the shooting distance from the subject, make the background more blurred and the effect is obvious.

Third, long focal length. Here, Lao Lang suggests that you use a focal length of more than 50 mm, and after grasping the distance from the subject and the background light source, you can easily take such a blur effect. The longer the focal length, the shallower the depth of field, the more obvious the background blur and the larger the spot circle.