Specification Brand : Multizenic BulletPoint1 : sturdy Material: Made of aluminum alloy for long-lasting use and reliability, ensuring repeated use without fading or damage. BulletPoint2 : Stability: Features a smooth, No burrs design for comfortable handling. The iris lens maintains its shape and elasticity, providing excellent stability during use. BulletPoint3 : Simple Installation: This manual adjustable aperture offers easy operation and convenient disassembly, eliminating the need for complex installation steps. BulletPoint4 : Aperture Adjustability: Easily adjust the aperture diameter from 1.8 to 22mm to meet various light transmission requirements. The 11 blades provide smooth and stable adjustment. BulletPoint5 : Versatile Application: Ideal for photography research, this adjustable iris aperture can also be used as a camera diaphragm or microscope accessory, enhancing your imaging capabilities. BulletPoint6 : Built Standard: Care to Meet Industry Standards for Quality Control, Ensuring Reliable and Consistent Performance Color : As Picture Configuration : Refer to description CustomerPackageType : Standard Packaging IncludedComponents : Refer to description ItemName : 1.8 22mm Adjustable Iris Aperture, 11 Blades Aluminum Alloy Manual Lens Diaphragm, Sturdy for Photography Research, Adjustable Aperture for Camera Microscope Accessory ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 5 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : borescopes Manufacturer : Multizenic Material : refer to description ModelNumber : Multizenicp7yd1mvi4k NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PartNumber : Multizenicp7yd1mvi4k Pattern : Refer to description ProductDescription : Item Type: 1.8‑22mm Adjustable Iris Aperture Weight: 13g/0.46oz Material: Aluminum alloy Hole Diameter: 1.8-22mm Blade: 11 pieces