Mechanic Auxiliary Objective Lens for Microscope 0.5/0.7

MECHANIC 0.3X 0.5X 0.7X 2X Auxiliary Objective Lens 48mm Thread Widefield Barlow Lens for Binocular Trinocular Stereo Microscope. Suport threaded microscope ringlight like Luowei LS01 and Mechanic Ls3.