The advanced trinocular Siedentopf compound microscope provides darkfield & brightfield microscope system and 5.0MP USB digital imaging system. The darkfield biological PLAN microscope comes with trinocular viewing head, body frame, quintuple reversed nosepiece, four PLAN objectives, large double layer mechanical stage with slide clips, variable intensity halogen transmitted illumination system, darkfiled NA0.7-0.9 & brightfield Abbe NA1.25 condensers. It offers eight level magnifications from 40X to 1600X. The 2592x1944 pixels USB digital imaging system that captures still microscope images and live video on computer. The included software compatible with Windows XP/Vista/7/8/10 can also be used to make measurements. You can also view and capture the images on iMac or Macbook with Mac OS. This top level lab microscopy is designed for research laboratories and advanced applications in clinical offices.