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

8.5mm, f/2.8 Ci Series Fixed Focal Length Lens

8.5mm Focal Length

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Stock #86-601 3-4 days
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Iris Option:
Fixed
Length (mm):
33.98
Horizontal Field of View, 1/2" Sensor:
88.3mm - 43.6°
Horizontal Field of View, 2/3" Sensor:
128.6mm - 60.6°
Filter Thread:
M30.5 x 0.50 with required adapter #89-932
Maximum Diameter (mm):
26.5
Weight (g):
34
Horizontal Field of View, 1/3" Sensor:
64.6mm - 32.6°
Maximum Rear Protrusion (mm):
0.6
Maximum Image Circle (mm):
11.00
Numerical Aperture NA, Object Side:
0.0138
Horizontal Field of View @ Max Sensor Format:
128.6mm - 60.6°
Number of Elements (Groups):
7 (5)
Horizontal Field of View, 1/1.8" Sensor:
101.0mm - 49.2°
Front Thread:
M22.0 x 0.5 (Male)
Horizontal Field of View, 1/2.5" Sensor:
79.2mm - 39.5°
Type:
Fixed Focal Length Lens
Diameter (mm):
26.50
Focal Length FL (mm):
8.50
Primary Magnification PMAG:
0.079
Maximum Sensor Format:
2/3"
Working Distance (mm):
100 - ∞
Mount:
C-Mount
Aperture (f/#):
f/2.8
Coating:
425 - 675nm BBAR
Coating Specification:
425 - 675nm BBAR
Entrance Pupil Position (mm):
8.22
Horizontal Field of View, 1/4" Sensor:
47.8mm - 24.4°
Object Space Principal Plane (mm):
14.08
Image Space Principal Plane (mm):
6.67
Field of View at Max Sensor Format:
Horizontal: 124.9mm - 60.7°
Vertical: 88.9mm - 45°
Diagonal: 169.3mm - 77°
Maximum Distortion (%):
-18.51
Exit Pupil Position (mm):
-12.23
Lens Wavelength Range:
VIS
Storage Temperature (°C):
-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS 2015:
REACH 201:
Certificate of Conformance:

Product Family Description

  • Up to 2/3", C-Mount Lens
  • Up to 7.5 MegaPixels, 2.8µm Pixel Size Sensors
  • Instrumentation (Ci) Versions of our C Series Lenses with Streamlined Mechanical Designs and Fixed Apertures
  • 3.5mm to 50mm Focal Length
  • Ruggedized (Cr) Designs Also Available

TECHSPEC® Ci Series Fixed Focal Length Lenses are a streamlined version of our C Series Fixed Focal Length Lenses. They feature the same low lens-to-lens variation and broadband anti-reflection (BBAR) coating for maximum light transmission, while offering reduced weight and size. An adjustable, lockable focus allows for setting and locking the best focus position for instrumentation integration. TECHSPEC® Ci Series Fixed Focal Length Lenses are designed specifically for volume integration into applications such as factory inspection and automation to benchtop biomedical devices. The Ci Series offers a wide range of aperture options, ensuring maximum flexibility of resolution, throughput, and depth of field.

Edmund Optics has created a family of high performance optical designs (the C Series family) and developed 6 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the C Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

  • C Series: Features locking cam focus and iris adjustment and is the most adjustable version of these optical designs; they are the typical high quality machine vision lenses. Also available with a VIS-NIR Broadband Anti-Reflection (BBAR) Coating.
  • Ci Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.
  • Cr Series: All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability.
  • Cx Series: Modular, flexible mechanics allows lenses to be taken apart for easy integration of accessories such as liquid lenses, apertures, and more.
  • Liquid Lens Cx Series: Designed with an integrated liquid lens for quick autofocus.
  • Cw Series: Waterproof, designed to meet IEC Ingress Protection Code IPX7 and IPX9K.
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Distortion Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Distortion Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Relative Illumination Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Relative Illumination Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8
#86-601, 8.5mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8

Technical Information

Dimensions
Focal Length A B C D
6mm M34.0 x 0.5 47.8mm 34mm 1.17mm
12mm M22.0 x 0.75 29.0mm 22mm 0.96mm
16mm M22.0 x 0.75 40.8mm 22mm 1.09mm
25mm M22.0 x 0.75 29.9mm 22mm 1.33mm
35mm M25.5 x 0.5 41mm 22.5mm 3.82mm
50mm M30.5 x 0.5 49.5mm 30.5mm 2.06mm