The so-called close-range photography refers to the focal length of

The so-called close-range photography means that the focal distance is 35 ~ 50 cm.

Close-range photography refers to shooting at a distance closer than the shortest shooting distance of the lens (usually 8 times the focal length), which is called close-up or close-up. Also known as close-up, close-up, close-up and close-up.

Close-ups are called close-ups. Close-range photography can be divided into equal-magnification photography and low-magnification photography according to the size of the object. When shooting, you need to use the auxiliary lens of close-range photography (additional lens of close-range photography) or connecting ring (middle ring), telescopic leather cavity, etc.

Close-up shooting does not allow you to get infinitely close to the subject. There is a term called "closest focal length", which has nothing to do with the camera and is one of the important parameters of the lens. The "closest focal length" of each lens is different, which is basically proportional to the focal length of the lens, that is, the longer the focal length.

The longer the "nearest focal length", for example, the "nearest focal length" of 28 is 0.28 meters, while the "nearest focal length" of 70-200 is 1.2 meters, which is nearly one meter apart. My 80-400 has no official data, but in my actual use, it is basically three or four meters away.

At close range, the depth of field is very small. If you use a larger aperture, the depth of field will be smaller. So you should pay attention to the stability when shooting. If you are not careful, the subject will "run out" of Jiao Wai, which is why a tripod is recommended for macro shooting.