籠式系統光圈

The TECHSPEC® Cage System Iris is a 10-leaf, blued spring steel iris in an anodized aluminum housing that can be easily integrated into any 25mm TECHSPEC Cage System plate. The TECHSPEC Cage System Iris provides smooth transition from the maximum aperture of 12mm to the minimum aperture of 0.8mm. The iris can be used to adjust system performance by controlling system f#, field stop diameter, and overall energy throughput.