The 40X-2000X trinocular compound LED microscope provides phase contrast & brightfield microscope system and USB digital imaging system. The phase contrast microscope features an optical system for simultaneously observing images through eyepieces and an adjustable trinocular port. It comes with LED illumination with variable intensity, Abbe NA1.25 condenser with iris diaphragm, a complete set of phase contrast kit and 3MP USB camera. It offers eight levels of brightfield magnification from 40X to 2000X. The phase contrast kit includes a phase contrast condenser, a centering telescopic eyepiece, four phase contrast objectives: PH10X, PH20X, PH40X (S), PH100X (S, Oil). It also offers magnification power: 100X-200X-400X-800X-1000X-2000X. The 2048x1536 pixels USB digital imaging system that captures still microscope images and live video on computer. The included software compatible with windows Mac OS and Linux operating system can also be used to make measurements. 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 phase contrast compound microscopy is widely used clinical, biological research and schools, specially for observing live cells.