Enhance the precision and control of your optical systems with this high-quality Adjustable Aperture Diaphragm, expertly crafted from premium aluminum alloy for durability and reliable performance. Designed with an inner hole diameter adjustable from 4mm to 60mm and an outer diameter of 82mm, this mechanical iris diaphragm offers versatile light transmission control to meet various application needs. Key Features: · **Adjustable Aperture Size:** Easily customize the aperture diameter from 4mm to 60mm (0.16-2.4 inches) using the convenient manual handle, allowing precise control over light intensity and focus. · **Premium Aluminum Alloy Construction:** Made from durable aluminum alloy, this aperture diaphragm ensures long-lasting use with firm and stable performance under frequent adjustments. · **Compact and Lightweight Design:** With a thickness of only 8mm and weighing approximately 49g (1.7oz), this compact iris diaphragm is easy to install without occupying excessive space, making it an ideal addition to your optical setup. · **18-Blade Iris Mechanism:** The 18-blade design provides smooth and accurate aperture adjustments, enabling consistent and reliable light modulation for enhanced image quality. · **Wide Applicability:** Perfectly suited for use with cameras, microscopes, condensers, and other optical instruments, this adjustable aperture diaphragm helps optimize performance across various scientific and industrial applications. Specifications: · Material: Aluminum Alloy · Product Number: sk60 · Inner Hole Diameter: 4-60mm (0.16-2.4 inches) · Outer Diameter: 82mm (3.2 inches) · Thickness: 8mm (0.3 inches) · Number of Blades: 18 · Weight: Approx. 49g (1.7oz) Package Includes: · 1 x Adjustable Aperture Diaphragm This Adjustable Aperture Diaphragm combines durable construction with precise manual control, making it an essential tool for enhancing the functionality and versatility of your optical devices. Improve your light management and achieve superior results in your imaging and scientific applications with this reliable and easy-to-use iris diaphragm.