0.5X is a condensing glass with a working distance of 165mm.Increase the working distance, reduce the multiple, the multiple after use is *0.5Auxiliary stereoscopic microscope objective lens is the function extension for a stered microscope,The microscope magnification increased to meet the need of ..
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 times. Mounting size: 1-7/8" (48mm) in diameter.This lens uses a 48mm (1-7/8") mounting thread and goes with most stereo microscopes.Ideal for AmScope..