封装版标准光圈Pre-mounted in Aluminum Mounts 8-32 or ¼-20 Threading for Post Mounting Aperture Sizes Up to 50mm
| 不锈钢系列可变光栏Stainless Steel and Brass Construction for Stability Ideal for Flow Control Applications Mounted Version Features a Tapped Hole for Easy Post Mounting
| 标准系列可变光圈Used to Adjust f/#, Field Stop Diameter, and Overall Light Throughput Mounted Version Features a Tapped Hole for Post Mounting Abundant Types for Varying Applications Iris Diaphragm Mounts Sold Separately
| 能完全关闭的可变光圈Provide Total Light Extinction When Closed Aperture Sizes Up to 50mm Iris Diaphragm Mounts Sold Separately
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