PZ2 Parallel Zoom Microscope adopts Galileo Optical System (Parallel Optical Path), which makes the image stay clear through the whole range of the FOV. The image is always clear and no twinkling in the whole course of zoom. Ergonomic design of long depth of field, plan field of view and long working distance, which ensures the observer against an uncomfortable feeling under prolonged use. True-Trinocular Image Port adopts fifty-fifty synchronous imaging system, and CCD camera, digital camera, film camera etc., video system can be connected. This microscope can meet the demand of analysis and examination of modern biology, medicine, environment, agriculture, public security, micro-electronics, semiconductor and so on. It can be widely applied in schools, biological engineering, scientific research, medical treatment, industrial assembly, test and measurement and quality control.