Motorized Iris Diaphragm MID5C

About GEOLA Digital Ltd.

• Type: Other
• Adjustment Range: 0 to 5 mm
• Microstep Size: 1 μm
• Repeatability: < 1 μm
• Precision: < 0.4 μm
• Closing Time (Max to Min): ~3 sec
• Mounting Interface: M3 threaded holes

The MID-5C is a high-precision Motorized Iris Diaphragm featuring an adjustable square aperture, controlled via an intuitive PC-based graphical user interface (GUI). Its unique design ensures that the metallic blades maintain perfect on-axis centering relative to an internal hole—which can optionally be configured with an SM05-threaded mount.

Even when adjusted from 0 to 5 mm, the square aperture remains perfectly centered within the round external diaphragm. The blades are black anodized to minimize unwanted reflections, ensuring optimal performance.
With an aperture adjustment precision of <0.5 μm and repeatability of <1 μm across the entire tuning range, the MID-5C delivers exceptional accuracy. It is designed for seamless integration into both stand-alone setups and 30 mm cage systems (e.g., Thorlabs).