This binocular polarizing microscope comes with a 45 degree inclined 360 degree rotatable binocular head, coarse & fine focusing and 20W halogen illumination, offering six magnification settings (40X, 64X, 100X, 160X, 400X, 640X). It has a built-in focusable Bertrand lens on rotatable disc with centering controls. The built-in analyzer can be removed from optical path. This polarizing microscope is great for metallurgical labs and foundries for silicon wafer inspection and quality control. It is brand new in factory sealed box. Its retail value is above $3,800.