0.5X is a condensing glass with a working distance of 165mm.Increase the working distance, reduce the multiple, the multiple after use is *0.5Auxiliar..
0.7X Barlow lens for SM series stereo microscopes, extending working distance and field view of the microscope and cutting magnification power by 0.7 ..
G1200 1-1200X Digital Microscope1-1200X G1200 Digital Microscope Electronic Video Microscope 7 Inch LCD Display 12MP Microscope..A 7-inch HD LCD scree..