XSF-4 series microscope can be applied in the field of higher education, medical and sanitation, laboratory scientific research institute, for clinical experiment, scientific analysis and teaching research work, on biology, pathology, bacteriology XSF-4 series biological microscope can be easily attached with full range accessories, including photo, CCD camera, digital camera, dark field, phase contrast, polarizing and etc. It is the ideal tool to be used in micro biology research work.