50mm Ring Adapter 50-40mm Adapter for Microscope Table Stand

40mm 50mm Monocular Lens Support Ring Focusing Bracket Adapter Holder For Digital HDMI USB Video Microscope Camera Stand Working Diameter: 50mm 30mm.

Features:
Model: Video C Mount Microscope Camera Monocular Lens Ring Adapter
Inside Diameter: 42mm
Outside Diameter: 50mm
Working Diameter: 50mm 30mm
Material: Metal

Packaging List:
1 x 50mm Ring Adapter
1 x 50-40mm Ring Adapter