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Manual Aperture Adjustable Mechanical Iris Diaphragm Custom Optical Iris Diaphragm For Digital Camera Microscope Iris Lens|Microscope Parts & Accessories| - AliExpress
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Manual Aperture Adjustable Mechanical Iris Diaphragm Custom Optical Iris Diaphragm For Digital Camera Microscope Iris Lens - Microscope Parts & Accessories - AliExpress
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