We Offer Mv-ba2000 Series Biological Microscope. coaxial Coarsefine Focus System, with Tension Adjustable and Limit Stopper, Minimum Division of fine Focusing: 2μm. with Wide Field Eyepieces and Plan Achromatic Objectives, the Field of View is Widely and Clear. Infinity Optical System, Facility Polarize Unit and Led Illumination Can Be Chosen. photography Eyepiece, Digital & Video Camera, Ccd Adapter, and Digital Camera Adapter Can Be Chosen. Phase Contract Unit Can Be Chosen, Including Phase Contract Condenser, Phase Contract Objective and Centering Telescope. Please Contact Us.