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7mm Max. Aperture, Burnished Steel Leaves Iris Diaphragm

Standard Series

Stock #57-579 3-4 days
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Minimum Aperture (mm):
0.5, Typical
Maximum Aperture (mm):
Outer Diameter (mm):
Anodized Aluminum Alloy, Burnished Spring Steel Leaves
Lever Diameter (mm):
Lever Length (mm):
Number of Leaves:
Thickness (mm):

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Corrosion and High Temperature Resistance Housing
  • Anti-Reflective (AR) Spring Steel or Burnished Spring Steel Leaf Options Available
  • Mounted Version Features both an English and Metric Tapped Hole for Easy Post Mounting

High Performance Standard Series Iris Diaphragms utilize high-quality materials combined with the highest fabrication standards to guarantee optimum performance and reliability even under extreme environmental conditions. Different leaf and aperture diameter options allow these irises to be successfully integrated into a variety of applications, including imaging and high-temperature environments. Known pin/tab angular deviation allows upfront, accurate assessment of movement requirements. Mounted versions of these diaphragms feature both metric and English tapped holes for easy post mounting. These diaphragms are offered with maximum apertures of 5 – 75mm and that have outer diameters ranging from 10 to 100mm. High Performance Standard Series Iris Diaphragms are constructed of a corrosion-resistant, matte finish, black anodized aluminum alloy.

For specific OEM application assistance, please contact our Applications Engineering Department.

Note: Iris Diaphragm Mounts sold separately.

Technical Information

Outer Diameter A Maximum Aperture B Minimum Aperture C Thickness D Level Position E Full Angular Range of Lever F Stock No.
10mm 5mm 0.5mm 4mm 2.4mm 76° #57-573
12mm 7mm 0.5mm 4mm 2.4mm 85° #57-574
14.8mm 8mm 1mm 4.5mm 2.5mm 81° #57-580
19.8mm 12mm 1mm 4mm 2.5mm 80° #57-575
28mm 18mm 1mm 5mm 2.9mm 89° #57-576
30mm 20mm 1.2mm 5.5mm 2.9mm 90° #57-577
37mm 25mm 1.5mm 5.5mm 3mm 93° #57-582
53mm 37mm 2.5mm 6mm 3.2mm 89° #57-583
70mm 50mm 2.5mm 7mm 3.8mm 84° #57-584
82mm 60mm 4mm 8mm 4.5mm 91° #57-585
100mm 75mm 4mm 9mm 4.5mm 95° #57-586