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

4.5mm C VIS-NIR Series Fixed Focal Length Lens

4.5mm C Series VIS-NIR Fixed Focal Length Lens, #39-938

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Stock #39-938
£620.50
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£620.50
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Focal Length FL (mm):
4.50
Maximum Sensor Format:
1/1.8"
Aperture (f/#):
f/2 - f/11
Working Distance (mm):
25 - ∞
Maximum Image Circle (mm):
9
Numerical Aperture NA, Object Side:
0.0285
Entrance Pupil Position (mm):
14.4
Exit Pupil Position (mm):
-9
Object Space Principal Plane (mm):
17.89
Image Space Principal Plane (mm):
6.51
Primary Magnification PMAG:
0.117
Field of View at Max Sensor Format:
Horizontal: 72mm - 84.7°
Vertical: 50.5mm - 66.1°
Diagonal: 98.2mm - 100.1°
Horizontal Field of View, 1/1.8" Sensor:
72.0mm - 84.7°
Horizontal Field of View, 1/2" Sensor:
61.9mm - 76.7°
Horizontal Field of View, 1/2.5" Sensor:
53.9mm - 69.4°
Horizontal Field of View, 1/3" Sensor:
44.0mm - 59.2°
Horizontal Field of View, 1/4" Sensor:
32.0mm - 45.2°
Maximum Distortion (%):
-15.83
Coating Specification:
425 - 1000nm BBAR
Filter Thread:
M58 x 0.75 with required adapter #87-425
Length (mm):
37.50
Maximum Diameter (mm):
40
Maximum Rear Protrusion (mm):
2.78
Number of Elements (Groups):
7 (6)
Iris Option:
Variable
Mount:
C-Mount
Type:
Fixed Focal Length Lens
Weight (g):
69

Regulatory Compliance

RoHS:

Product Family Description

  • Up to 2/3", C-Mount Lens
  • Up to 7.5 MegaPixels, 2.8µm Pixel Size Sensors
  • Compact (C) Broadband Lens for 425-1000nm Wavelength Range
  • 3.5mm to 50mm Focal Length

TECHSPEC® C VIS-NIR Series Fixed Focal Length Lenses are designed for use in machine vision applications that require NIR or VIS-NIR performance, with the working distance and resolution requirements of factory automation and inspection in mind. Featuring large maximum apertures and a Broadband Anti-Reflection (BBAR) coating designed out to 1000nm, these high performance lenses can be used in even the most restrictive lighting conditions. TECHSPEC® C VIS-NIR Series Fixed Focal Length Lenses are manufactured to a high tolerance, resulting in greater levels of imaging performance and low lens-to-lens variation, assuring simple installing into multiple systems. By combining high optical performance, industrial features, and small package size, the C VIS-NIR Series lenses represent a new standard in factory automation optics.

Also available with a VIS Broadband Anti-Reflection (BBAR) Coating.

Note: For IR imaging alone, UV-VIS Cut Filters are available and thread directly onto the front filter threads of the 4.5mm, 16mm, 25mm, 35mm and 50mm FL lenses. 

Technical Information

 
Focal Length A B C D
16mm 33.0mm 40.5mm 33.0mm 1.0mm
25mm 31.0mm 30.5mm 31.0mm 1.3mm
35mm 33.0mm 41.0mm 33.0mm 0mm
50mm 35.8mm 53.7mm 35.8mm 2.85mm
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