3 Inch Antique brass microscope objective lens in canister. RMS thread.

1/2 Inch Antique brass microscope objective lens. Andrew Ross. Dated 1852.

0.5X 1-7/8" WD165 48mm Auxiliary Lens Barlow Objective Lens f Stereo Microscope

1X Trinocular Stereo Microscope Auxiliary Objective Lens Easy Installation

WD165 0.5X Stereo Microscope Barlow Lens with 1-7/8" (48mm) Mounting Thread

Auxiliary Objective Lens Barlow Lens Magnification Lens for Stereo Microscopes

0.5X Stereo Microscope Barlow Auxiliary Objective Lens 1-7/8" 48mm W.D.165

WD120 0.7X Trinocular Stereo Microscope Auxiliary Objective Lens 48mm Thread