Macro lens can be used for close-up shooting. What are the marks on these lenses?

Macro lens models are generally marked with macro or macro.

Macro lens is commonly known as "macro lens", but macro lens is not necessarily shot at "micro" close range. Some zoom lenses set macro files at the telephoto end (or short focal end), while others can shoot macro at all focal segments. The correct name should be "Pang Jing", and "micro" means tiny. For example, "microscope" means microscope.

Macro lens is a special lens for macro photography, which is mainly used to shoot very fine objects, such as flowers and insects. In order to focus on the object correctly at a very close distance, the macro lens is usually designed to be stretched longer so that the optical center is as far away from the photosensitive element as possible.

Macro photographic lenses generally have two structures. One macro photography lens adopts the structure of built-in telescopic lens barrel, and the other adopts the structure of exchanging the front and rear positions of optical lens groups in the lens.

Extended data:

There is an explanation among the people that the macro lens is more comprehensive. Macro lens can work at a shorter focusing distance than ordinary lens, and will not cause image deterioration. In order to balance these two working distances, the structure is often optimized. The general practice is to increase the number of corrective lenses and improve the grinding and assembly accuracy of lenses. Therefore, macro lenses are usually several times more expensive than ordinary lenses with the same aperture, and at the same time, the imaging quality at short distance and long distance is guaranteed.

Macro photographic lenses generally have two structures. One macro photography lens adopts the structure of built-in telescopic lens barrel, and the other adopts the structure of exchanging the front and rear positions of optical lens groups in the lens. In ordinary photography, the photographer can focus normally by rotating the lens focusing ring.

If you want to take a close-up, as long as the focus ring that has been rotated to the nearest focus continues to rotate, the entire optical system of the lens can move forward synchronously with the built-in lens barrel, thus increasing the image distance and achieving the purpose of close-up; The latter obtains higher image magnification by changing the front and rear positions of the optical lens group in the lens, thus achieving the purpose of close-up.

Baidu encyclopedia-macro lens

Baidu encyclopedia-macro photography