Feature 1Wide Application: The microscope iris aperture adapter is very suitable for optical applications, it can be widely used in a variety of optical instruments, cameras, etc. 2Adjustable Aperture: The microscope aperture adapter can change the diameter of the aperture through the handle. The 250mm adjustable aperture can meet different translucency requirements. The 16 blade design facilitates adjustment, making the aperture work more stable. 3Enhanced Image Quality: By adjusting the iris aperture diaphragm, you can optimize the image quality by reducing aberrations and increasing sharpness and clarity. 4Compact: The camera adjustable iris aperture has compact and practical design which makes the diaphragm work more stable and convenient 5Durable: The adjustable iris aperture diaphragm is made of aluminum alloy material, which is durable, with a long service life. It can be used repeatedly for a long time, bringing you a good user experience.Item Type: Adjustable Iris Aperture DiaphragmMaterial: Aluminum alloyWeight: Approx. 59g / 2.1ozAperture Diameter Range: 2-50mm .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Adjustable Iris Aperture Diaphragm1 x Packaging Box