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

8.5mm, f/2.0, 75mm-∞ Primary WD, HRr Series Fixed Focal Length Lens

8.5mm HRr Series Lens

Stock #35-148
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: 130.5mm - 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

RoHS 2015:
Reach 209:

Product Family Description

  • 2/3", C-Mount Lens
  • Up to 9 MegaPixels, 1.85µm Pixel Size Sensors
  • Ruggedized (HRr) Designs (50g Shock) of our HR Series Lens with Individual Optics Glued in Place
  • 8.5mm to 12mm Focal Length

TECHSPEC® HRr Series Fixed Focal Length Lenses are designed with a high level of machine vision performance in mind and are stability ruggedized with all individual lens elements glued in place to reduce pixel shift. They are available in multiple options for each focal length to accommodate a variety of optimized working distance ranges. Additionally, the stainless steel locking C-Mount clamp and simplified focus provide added robustness. TECHSPEC HRr Series Fixed Focal Length Lenses are exemplary for calibrated imaging systems such as measurement and gauging, 3D stereo vision, robotics and sensing, autonomous vehicles, and object tracking. 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.