Is microscope used for micro-focus lens or ordinary lens?

There are many common microscopes, such as LJ-TS0 1 Stereo Microscope, LJ-SZM Stereo Microscope, LJ-ST03, LJ-CLO1Photogrammetry Microscope, LJ-CLP03 Metallographic Microscope, LJ-HD0 1 HD Microscope and LJ-HS. LJ-DSX0 1 TV microscope, LJ-SPX0 1 video microscope, LJ-DZF electron microscope, LJ-DZX0 1 digital microscope, etc. Some lenses use macro lenses, while others are telecentric lenses.

The difference between them

Difference in magnification.

The magnification of an ordinary lens is generally between 1 and 0. 10 and 0.35. The magnification of the macro lens is 1 to1; The so-called magnification refers to the size of the subject on the image sensor. The object photographed by the macro lens is 1 larger than the original, and the magnification of 0. 10 on the image sensor is only 0. 1 larger than the original.

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 longer so that the optical center is as far away from the photosensitive element as possible. At the same time, in the design of lens group, we should also pay attention to the control of close-range deformation and color difference. The focal length of most macro lenses is larger than that of standard lenses, which is not completely suitable for general photography.

Macro photographic lenses generally have two structures. One macro photographic lens adopts a structure with a built-in telescopic lens barrel, and the other adopts a structure in which the positions of the optical lens groups in the lens are interchanged.