The metallographic microscope is mainly composed of an optical system, illumination system, mechanical system, and accessories (including photographic or other devices such as micro-hardness testers).

The metallographic microscope is a type of microscope that uses visible light as its illumination source.

Resolution and aberration correction of lenses, as well as the degree of correction for resolution and image aberration defects, are significant indicators of microscope quality. In metallographic technology, resolution refers to the minimum resolving distance of the objective lens to the object. Due to the phenomenon of light diffraction, the minimum resolving distance of the objective lens is limited.

The metallographic microscope is primarily used for identifying and analyzing the internal microstructure of metals. It is an essential instrument for metallographic research in the field of metallurgy.