Product Detail Great research microscope! This professional binocular microscope incorporates all the best features of a quality laboratory instrument. The objectives face backwards for more space and the base has a comfortable plastic plating over the metal for less heat conduction. The field diaphragm adjustment built into the illuminator offers Koehler illumination for more lighting control options. . The "C&A Scientific Professional Binocular Microscope C&A MRP-3000" is best product for you. We recommended C&A Scientific Professional Binocular Microscope C&A MRP-3000