80 times the microscope, clear observation, (with scale of the microscope / magnifying glass can accurately read the actual size of small items, a large range of 2.0mm small grid value 0.01mm) LED lights white light, can test textile printing, porcelain internal bubbles and The internal structure of jewelry, calligraphy and paper fiber, the relationship between the old ink and paper, the true and false rust structure of bronze, silver castings authenticity, stamps, genuine and counterfeit trademark identification.