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

8.5mm f/8, 75mm-∞ Primary WD, HRi Series Fixed Focal Length Lens

8.5mm f/8, 2/3" HPi Series Fixed Focal Length Lens, #36-752

Stock #36-752
Qty 1+
Volume Pricing
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Focal Length FL (mm):
Maximum Sensor Format:
Aperture (f/#):
Working Distance (mm):
75 - ∞
Optimized Working Distance (mm):
75 - ∞
Maximum Image Circle (mm):
Numerical Aperture NA, Object Side:
Entrance Pupil Position (mm):
Exit Pupil Position (mm):
Object Space Principal Plane (mm):
Image Space Principal Plane (mm):
Primary Magnification PMAG:
Field of View at Max Sensor Format:
Horizontal: 101.4mm - 56.8°
Vertical: 74.2mm - 43.5°
Diagonal: 130.4mm - 68.9°
Horizontal Field of View, 2/3" Sensor:
101.4mm - 56.8°
Horizontal Field of View, 1/1.8" Sensor:
81.5mm - 47.2°
Horizontal Field of View, 1/2" Sensor:
71.9mm - 42.2°
Horizontal Field of View, 1/2.5" Sensor:
64.8mm - 38.4°
Horizontal Field of View, 1/3" Sensor:
53.2mm - 32.0°
Horizontal Field of View, 1/4" Sensor:
39.6mm - 24.1°
Maximum Distortion (%):
Coating Specification:
425 - 675nm BBAR
Filter Thread:
M58 x 0.75 with adapter #87-425
Length (mm):
Maximum Diameter (mm):
Maximum Rear Protrusion (mm):
Number of Elements (Groups):
9 (8)
Iris Option:
Fixed Focal Length Lens
Weight (g):

Regulatory Compliance


Product Family Description

  • 2/3", C-Mount Lens
  • Up to 9 MegaPixels, 1.85µm Pixel Size Sensors
  • Instrumentation (HRi) Versions of our HR Series Lenses with Streamlined Mechanical Designs and Fixed Apertures
  • 8.5mm to 12mm Focal Length

TECHSPEC® HRi Series Fixed Focal Length Lenses are a streamlined version of our HR Series Lenses. There are multiple options available for each focal length to accommodate a variety of optimized working distance ranges. Designed for high volume imaging applications, HPi series lenses feature simplified focus mechanics and a fixed aperture. TECHSPEC HRi Series Fixed Focal Length Lenses are available in a variety of f/# options, making them ideal for applications that require reduced size, cost, and lockable focus imaging solutions. Call for OEM Quantity Pricing.

Edmund Optics has created a family of high performance optical designs (the HR Series family) and developed three customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the HR Series Lenses, providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

  • HR Series: Features locking cam focus and iris adjustment. This is the most adjustable version of these optical designs and is the typical high quality machine vision lens.
  • HRi Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.
  • HRr Series: Stability ruggedized with all optics glued in place and a locking C-clamp focus ring for reduced pixel shift and improved focus stability.
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