4X Achromatic Objective Lens 195 RMS 20.2mm Thread For Biological Microscope Dry

4X 195 Achromatic Objective Lens RMS 20.2mm for Biological Microscope

195 Achromatic Microscope Objective Lens 4X RMS 20.2mm Thread for Biological Lab

195 Plan Achromatic Microscope Objective Lens 4X RMS 20.2mm Biological Lab

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10X 195 Plan Achromatic Objective Lens RMS 20.2mm for Biological Microscope

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195 Plan Achromatic Microscope Objective Lens 4X-100X RMS 20.2mm Flat Field