THIS ITEM HAS SOLD - PLEASE CONTACT US TO CHECK AVAILABILITY OF SIMILAR UNITS.  American Optical Stereo Star #580 stereo microscope.  This microscope just went through our shop where it was lubricated and all optics cleaned.  It is in nice operating condition - parfocal and zooms straight.  The zoom drive train was lubricated and the Teflon zoom gear was inspected and no defects were found.  It comes equipped with 10X widefield eyepieces, Nicholas Illuminator and trans-base.  The zoom range is 1X to 6X allowing for total magnification of 10X to 60X.  The images are sharp.