Optical Iris Diaphragm 1-16mm Manual Aperture Condenser for Camera Microscope

Adjustable Diaphragm Mechanical 1-12mm Iris Aperture Microscope Camera Module

SK12 Microscope Iris Adapter Aperture Adjustable Lens Optical Diaphragm Parts

Integrated Manual Variable Iris Diaphragm Aperture, 1‑16mm Adjustable Condenser

1PC 1-28mm Zoom Adjustable Iris Diaphragm Aperture Camera Laser Microscope Parts

1.2-18mm Mechanical Diaphragm Adjustable Iris Integrated Aperture StopMicroscope

1.5-25mm Adjustable Iris Diaphragm Aperture for Optical Microscope Camera Laser

1-18MM Optical Iris Diaphragm Manual Aperture Variable Module Camera/Microscope