Modulation Optic Modulation Modulation Contrast Lens 40mm WD/0.5na

WD 0.5X 0.7X 2X Auxiliary Objective Lens Barlow Lens for Nikon Stereo Microscope

AmScope SM05 0.5X WD165 Barlow Lens for Stereo Microscope 48mm

Hoffman Modulation Contrast Model G1 55mm WD 0.5NA Inverted Microscope Condenser

Hoffman Modulation Contrast Condenser Insert 40X - 25mm Diameter

Olympus Microscope 110AL 0.5X WD200 0.5X Objective Barlow Lens for SZ Series

WD 0.5X 0.7X 2X Auxiliary Objective Lens Barlow Lens for Nikon Stereo Microscope