[ADJUSTABLE INNER DIAMETER] The M36 aperture diaphragm features a precisely adjustable inner diameter ranging from 4.5mm to 25mm, with an outer diameter of 42mm and a thread diameter of M36. This allows for versatile light control in various optical setups, making it ideal for professional photography and laboratory applications. The smooth adjustment mechanism ensures precise control over light throughput.
[VERSATILE FUNCTIONALITY] Designed to provide small holes of varying diameters in optical systems, this iris diaphragm meets diverse light throughput requirements. Whether you're working with cameras, microscopes, or other optical devices, this component ensures optimal light management for clear, high-quality results in any lighting condition.
[USER-FRIENDLY OPERATION] Changing the diameter of this aperture diaphragm is incredibly simple thanks to its ergonomic handle design. Even beginners can operate it with ease, making adjustments quickly and accurately during shoots or experiments. The intuitive design eliminates guesswork and enhances workflow efficiency.
[DURABLE CONSTRUCTION] Crafted from premium aluminum alloy and stainless steel, this camera aperture diaphragm offers exceptional durability and reliable performance. The rugged construction withstands frequent use while maintaining precision, ensuring long-term functionality in professional environments.
[COMPACT AND PRACTICAL] With its space-saving design, this aperture diaphragm provides a practical solution for optical setups. The compact form factor doesn't compromise on functionality, making it an essential tool for photographers, scientists, and optical engineers who demand both performance and portability in their equipment.

Spec:
Item Type: Aperture Diaphragm
Material: Aluminum alloy, stainless steel
Inner Hole Diameter: Approx. 4.5-25mm / 0.18-0.98in
Outer Diameter: Approx. 42mm / 1.65in
Number of Blades: 14
Thickness: Approx. 10mm /