Adjustable Iris Aperture Diaphragm 1.5-25mm Microscope Iris Adapter Aperture Adjustable Lens Optical Diaphragm for Microscope Iris Diaphragm(SK12)

Specification: Item Type:Iris Diaphragm SK25: Magnified Diameter: 1.5-25mm Material: Metal Outer Diameter :37mm Inner Diameter: 25mm Thickness :5.5mm 14 blades SK23 Outer Diameter: 37mm Minimum Aperture Diameter: ø1.5mm Maximum Aperture Diameter: ø23mm Material:Metal Thickness: 7.0mm 12 Blades SK12 Outer Diameter: 19.8mm Minimum Aperture: ø1mm Maximum Aperture: ø12mm Material: Metal Thickne...