The 40X-2500X trinocular compound LED microscope provides phase contrast & brightfield microscope system and a super speed 18MP USB 3.0 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 18MP USB 3.0 camera. It offers six levels of brightfield magnification from 40X to 2500X. The phase contrast kit includes a phase contrast condenser, a centering telescopic eyepiece, four plan phase contrast objectives: PH10X, PH20X, PH40X (S), PH100X (S, Oil). It also offers magnification power: 100X-200X-250X-400X-500X-1000X-2500X. The 4912x3684 pixels USB 3.0 digital imaging system that captures still microscope images and live video on computer. The included software is compatible with Windows, Mac OS X and Linux operating systems (see version information below). The Windows software 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.