The KUPO ETI-S24 is a 24-leaf manual iris for SL, made for smooth circular beam control in profile-style lighting. It lets the operator narrow the aperture without relying only on shutters or changing the lens arrangement.
Why It Matters
SL benefit from an iris that matches their accessory format and gives a cleaner circular close-down. ETI-S24 combines the 24-leaf construction with heat-resistant stainless steel leaves, fixed focusing holes, and the listed dimensions needed for SL compatibility.
Key Features
24-leaf construction supports a smoother circular edge as the aperture is reduced
Aperture adjusts from 4.5 mm to 75 mm for both tight specials and wider beam settings
Stainless steel leaves with formulated gray paint resist heat up to 450 °C
Three fixed focusing holes help the iris seat quickly and consistently
SL-specific listed dimensions help separate it from S4, Pacific, and Acclaim iris models
Applications
Use it in SL fixture systems for theatre specials, studio control, venue lighting, and cue refinement where a smooth circular aperture is preferred.
Compatibility
Compatible with SL, with listed dimensions A 107 mm, B 115 mm, C 14 mm, and D 102 mm.
Frequently Asked Questions
Is ETI-S24 only for SL?
Yes. The specification lists ETI-S24 as the 24-leaf iris for SL.
Why choose a 24-leaf iris?
A 24-leaf iris can create a smoother circular edge when closing the beam down than a lower-leaf-count design.
Can it fully replace shutter cuts?
No. It controls circular aperture size; shutters are still the better tool for straight cuts and shaped beam edges.
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