2-44mm 2.5-42mm Iris Diaphragm Microscope Adapter Ring M58 M65 M67 Camera

2.5-42mm Zoom Iris Diaphragm Aperture Condenser Camera Microscope Concentrator

1pc 1-20mm Adjustable Iris Diaphragm Aperture Condenser Microscope Concentrator

100V-240V Adjustable Brightness LED Ring Bottom Light Source Stereo Microscope

USB LED Ring Bottom Light Source Adjustable Brightness for Biological Microscope

Adjustable 144 LED Bulb Microscope Ring Light Illuminator Lamp US/UK/EU/AU Plug

1-20mm Adjustable Iris Diaphragm Aperture Condenser f Digital Camera microscope

0.5-15MM Camera Microscope Adapter zoom Iris Diaphragm Aperture Condenser