The research binocular compound microscope provides darkfield & brightfield microscope system and USB digital imaging system. It offers four level magnifications from 40X to 1000X. The USB digital imaging system 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. The darkfield digital compound microscope comes with a sliding binocular head, large double layer mechanical stage, a halogen illumination system, an USB digital camera and rack & pinion adjustment abbe condenser with iris diaphragm condenser with iris diaphragm. All lenses are made of high quality optical glass. The high resolution image in the field of view is crystal clear and will satisfy the demands of professionals. This binocular microscopy is good for teaching, demonstration, clinical examination and research purpose.