Iris diaphragm

Adjustable Iris Aperture Diaphragm 1.5 25mm Adjustable Lens Optical Diaphragm for Camera

Iris Aperture 1.5mm To 26mm ID 45mm OD M30 To M37 Aperture Diaphragm for Optical System Camera Microscope

Microscope Iris Adapter Aperture Adjustable Lens Optical Diaphragm for MicroscopeSK23

1.5‑26mm Adjustable Metal Iris Diaphragm Aperture Condenser M42 To M42 Camera Lens Adapter

Adjustable Iris Aperture Diaphragm 1.2 To 18mm Aluminium Alloy 12 Blades Manual Control Lens

Aperture Diaphragm Aluminium Alloy Handle Adjustment Mechanical Iris Aperture Diaphragm for

SK1616 1 16mm Adjustable Iris Diaphragm Manual Aperture Lens Optical Platforms for Camera

Iris Adapter Aperture Lens Adjustable Iris Aperture Diaphragm Portable Optical Diaphragm Camera

SK44 2?44mm Iris Diaphragm Sturdy Optical Module Variable Manual Industrial Aperture Diaphragm

Aperture Adjustable 1.5‑29 Mm Iris Diaphragm M42 To M42 Camera Lens Module Adapter Ring

Adjustable Iris Aperture Diaphragm 1 To 16mm Aluminum Alloy Iris Aperture Diaphragm Adapter for

Iris Diaphragm 1.5mm?25mm ID 55mm OD M42 To M42 Aperture for Optical System Camera Microscope

Adjustable Iris Aperture Diaphragm 2‑50mm Microscope Iris Adapter Aperture Adjustable Lens

Microscope Iris Adapter Aperture Adjustable Lens Optical Diaphragm for MicroscopeSK25 with Base

Aperture Diaphragm Manual Adjustable Aluminum 0.5‑15mm 12 Blades Iris Diaphragm for Camera

2.5‑36mm Adjustable Iris Aperture Diaphragm Iris Diaphragm Lens Optical Accessories

M36 Aperture Diaphragm 4.5?25mm Bore Diameter Adjustable Camera Lens Iris Diaphragm

Iris Diaphragm Mechanical Adjustable Manual Aperture Lens for Digital Camera M4 SK12 1~12mm

Lens Diaphragm 3 To 52mm Aluminum Alloy Adjustable Microscope Iris Adapter Aperture Diaphragm for

SK7.5 0.5?7.5mm Manual Aperture Adjustable Iris Diaphragm Optical Diaphragm for Camera

2‑44mm Adjustable Iris Aperture Aluminum Alloy Lightweight Iris Diaphragm Mechanical for

Adjustable Aperture 2‑50mm Iris Diaphragm Aluminum Alloy Manual Aperture Adjustable Mechanical Iris

1.8‑22mm Adjustable Iris Aperture 11 Blades Aluminum Alloy Reusable Adjustable Lens Diaphragm for

SK34 Adjustable Iris Aperture Diaphragm Module Condensor Optical Diaphragm for Optical Instrument