What are the functions of photography?

Those typical portrait works are generally shot with SLR cameras, and the lens used (that is, the focal length of the lens you mentioned) is generally above 70 mm and below 200 mm, even professional fixed-focus portrait lenses. These lenses are of high quality, and most of them have large apertures. In addition, other people's shooting conditions and accessories, rigorous photometry and depth of field prediction are professional requirements ... so due to various factors, it may be difficult for us to shoot the same effect.

Why don't you use the portrait mode in the camera and try to get as close as possible to the bust or close-up of the subject. The scenery behind the figure should be as far away from the figure's back as possible, and the distance should be extended to make the background in Jiao Wai as much as possible.

In addition, if you choose telephoto (that is, the greater the optical zoom factor of your camera), your relative maximum aperture will be smaller (because it is not a constant lens), so it is not conducive to the emergence of short depth of field, and it is not conducive to blurring the background, so it is difficult to shoot that effect.

But you can't take portraits in macro mode, otherwise the photos are almost useless for portrait photography. Unless, of course, you want to put away the freckles and sweat pores on the other person's face. Because the focus range of macro mode is generally around 2 to 10 cm (for DC machines), it is impossible for us to put the machine in front of others when shooting portraits. When the camera is pulled out a little, it comes out in a blur. A work with no definite point, no distinction between subject and background, out of focus and fuzzy is a waste film.