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 ..
RF4 7-inch 360° Rotating Powerful Vacuum LCD Screen Separator MachineFeatures:Rotation angle: 360°C without dead angleFixed by special fixture, stable..