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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

S-Mount Iris Diaphragm Mount

TECHSPEC® S-Mount Iris Diaphragm Barrel

Stock #11-151
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Qty 1-4
Qty 5+
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Iris Diaphragm
Thread Type:
Clear Aperture CA (mm):
0.7 - 5.0
Extension Length (mm):
Outer Diameter (mm):
Total Length (mm):

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

  • Variable Apertures for C, S, and T-Mount Systems
  • Male and Female Thread at Opposite Ends for Easy Integration
  • Adjusted via Rotating Ring or Lever for Precision Control

TECHSPEC® C, S, and T-Mount Iris Diaphragm Mounts feature iris diaphragms that allow for precision control over the internal aperture within a system. Using male and female threads, these mounts can be placed anywhere within a C, S, or T-Mount system. The apertures can be adjusted via a rotating ring for the C-Mount version, with a 4mm lever for the S-Mount version and with a 5mm lever for the T-Mount version. TECHSPEC C, S, and T-Mount Iris Diaphragm Mounts add 12mm, 12mm, and 18mm to the system length, respectively. These mounts are ideal for providing control over the f/#, field stop diameter, and overall energy throughput of a C, S, or T-Mount system.

NOTE: The iris planes sit approximately 15mm, 8mm, and 12mm from the female ends of the TECHSPEC C, S, and T-Mount Iris Diaphragm Mounts, respectively.

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