18 Blades Aperture Diaphragm Robust Stable Simple Operation Compact Metal Adjusting Inner Diameter

Feature: 1. Adjusting Inner Diameter: The inner Diameter of this aperture diaphragm is adjusting, which means that the aperture diaphragm can meet different requirements for use. 2. Safe and Reliable: The aperture diaphragm is very safe and reliable and will not make people feel uncomfortable, so there is no need to worry when using it. 3. Stable Performance: Our aperture diaphragm is very strong and durable, stable performance, can give you a nice experience when you use it. 4. Easy to Operate: The aperture diaphragm is very easy to operate, and due to its light weight and compact design, it is also very easy to install and disassemble. 5. Applicable Situations: The aperture diaphragm has 18 blades, which is ideal for daily laboratory experiments and other small experiments or for classroom demonstrations. Specification: Item Type: Aperture Diaphragm Material: Metal Inner Diameter: Approx. 2.5-42mm0.1-1.7in Outer Diameter: Approx. 58mm2.3in Thickness: Approx. 6.5mm0.3in Number of Blades: 18. Package List: 1 x Aperture Diaphragm Note: Manual measurement may have error. Please make sure you don " t mind before ordering.