Auxiliary Objective Lens Thread For Zoom Stereo Binocular Trinocular Microscope

  
Feature: 0.3X 0.5X 0.7X 0.75X 1X 1.5X 2.0X Magnification Power 1-7/8 (48mm) Mounting Thread Package incluede. 1 x 0.3X Microscope Auxiliary Objective Lens(Working Distance 287 mm) 1 x 0.5X Microscope Auxiliary Objective Lens(Working Distance 165 mm) 1 x 0.7X Microscope Auxiliary Objective Lens(Working Distance 120 mm). 1 x 0.75X Microscope Auxiliary Objective Lens(Working Distance 120 mm) 1 x 1.0X Microscope Auxiliary Objective Lens(Protection function) 1 x 1.5X Microscope Auxiliary Objective Lens(Working Distance 45 mm) 1 x 2.0X Microscope Auxiliary Objective Lens(Working Distance 30 mm).