3 4 5 Holes Microscope Converter Revolving Nosepiece Objective Lens Adapter

3/4/5 Hole Microscope Objective Nosepiece RMS 20.2mm for 185/195 Microscope

Biological Microscope Objective Converter Revolving Objective Lens Adapter

Biological Microscope Accessories Revolving Nosepiece Microscope Lens Exchanger

8PCS Plastic Standard Thread Objective Lens Dust Cover for Biological Microscope

Unknown microscope phototube adapter Auxiliary Objective Lens connector

Olympus C-35AD-4 PM-10ADS camera adapter Auxiliary Objective Lens microscope