[Compact Professional Design] With its slim 5mm profile and 19mm outer diameter this space saving diaphragm delivers professional grade performance. the precisely engineered 12mm inner hole accommodates most optical setups while the durable materials withstand rigorous daily use.
[High Precision Mechanical Diaphragm] This diaphragm features an independently developed mechanical design that ensures ultra in aperture control. the smooth operation allows for precise light adjustment from 1mm to 12mm diameter making it perfect for professional photography and optical experiments.
[Durable Anti Construction] Crafted from premium iron material with advanced anti treatment this diaphragm maintains excellent performance over time. the sturdy construction prevents deformation while the burr free edges ensure safe handling and long lasting reliability.
[Smooth Adjustable Aperture] The innovative handle mechanism enables effortless diameter adjustment while maintaining perfect circular openings. this feature provides photographers with creative control over depth of field and scientists with precise light manipulation capabilities.
[Versatile Optical Accessory] An essential tool for photographers and scientists alike this diaphragm works seamlessly with digital cameras lasers and optical platforms. its adaptable design meets various lighting requirements for photography microscopy and applications.

Spec:

Item Type: Diaphragm
Model: SK12
Material: Iron
Uses: Accessories for lasers, cameras, and optical platforms
Enlarged Diameter: Approx. 1 ~ 12mm / 0 ~ 0.5in
Outer Circle: Approx. 19mm / 0.7in
Inner Hole: Approx. 12mm / 0.5in
Thickness: Approx. 5mm / 0.2in

Package List:
1 x Diaphragm

How To Use:
The product can provide different straight holes in the optical system to meet different light requirements, and the diaphragm diameter can be changed by adjusting the handle.