0.3x 0.5X 0.7X 2.0X Auxiliary Objective Lens Barlow Lens For Binocular Trinocular Stereo Microscope

1-7/8" (48mm) Mounting Thread
1 x 0.3X Microscope Auxiliary Objective Lens(Working Distance 287mm)
1 x 0.5X Microscope Auxiliary Objective Lens(Working Distance 200 mm)
1 x 0.7X Microscope Auxiliary Objective Lens(Working Distance 135 mm)
1 x 2.0X Microscope Auxiliary Objective Lens(Working Distance 30 mm)

Note: excluding microscope

# 1:
1x 0.5X Barlow Auxiliary Glass Lens

# 2:
1x 0.7X Barlow Auxiliary Glass Lens

# 3:
1x 2X Barlow Auxiliary Glass Lens