The biological laboratory microscope includes the trinocular viewing head with hinged eyetubes compensation free interpupillary distance adjustment, body frame, quintuple reversed nosepiece, four DIN achromatic objectives, large double layer mechanical stage with scales and variable intensity halogen transmitted illumination system. It offers eight level magnifications 40X-1600X. The trinocular port is easy to mount photo or video capability. You can add advanced accessories including darkfield condenser and phase contrast kit to upgrade your microscope. This top level lab microscopy is designed for research laboratories and advanced applications in clinical offices.