8mm Thickness Steel Manual Iris Adjustable Aperture 19.8mm Diameter for Photography

High-Precision Large-Aperture Control: Features a significantly wide Enlargement Diameter​ range of 3mm to 52mm, making it suitable for applications requiring substantial light control and variable depth of field in larger optical systems.

Robust Industrial Build: With a thickness of 8mm​ and a substantial outer diameter of 73mm, this large-format iris diaphragm utilizes a durable metal construction with multiple mounting holes for secure integration into heavy-duty machinery.

Efficient Manual Adjustment: Equipped with a metal rod actuator, the device allows for smooth, linear, and precise manual adjustment of the aperture blades to the desired size.

Optimized Optical Aperture: The precisely engineered overlapping blades form a near-perfect circular opening, minimizing optical distortion and vignetting while maximizing image quality for the connected lens system.

Large-Scale Machine Vision Systems: Ideal for integration into high-resolution industrial cameras and optical inspection equipment where a large, adjustable aperture is necessary to handle varying lighting conditions.

Scientific Research & Astronomy: Suitable for use in telescopes, microscopes, and other scientific instruments that require precise control over the light path and focus parameters.

Professional Broadcast & Cinema Cameras: Can be utilized in professional-grade camera lenses to provide cinematographers with enhanced control over exposure and depth of field effects.

High-Power Optical Illumination Systems: Realize continuous light flux adjustment for studio fill lights and laser shaping equipment, avoiding overexposure caused by excessive incident light.