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.
What's in the box
1 x Aperture Diaphragm
