Objective lens 0.7x-4.5x continuous variable objective lens. Total magnification: 3x-173x MIC-6 Comparison Microscope Through optical magnifying, joint and superposition, analyze and compare two images of object field coverage which is observed by the same set of eyepieces to find minimum difference in microscopy and microscopy. It’s widely applied to distinguish minimum difference, such as bullet, tool mark, fingerprint, character or script and currency in the field of Public Security Bureau, Procuratorate, Court of Justice, Judicial Bureau, university, institute as well as electronics, agriculture, archeology, customs, bank.