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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

75mm DG Series Fixed Focal Length Lens

75mm Focal Length, #54-691

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Iris Option:
Variable
Length (mm):
116.20
Horizontal Field of View, 1/2" Sensor:
20.5mm - 4.9°
Horizontal Field of View, 2/3" Sensor:
28.1mm - 6.7°
Filter Thread:
M49.0 x 0.75 (Female)
Maximum Diameter (mm):
47.5
Weight (g):
436
Horizontal Field of View, 1/3" Sensor:
15.3mm - 3.7°
Maximum Rear Protrusion (mm):
3.5
Horizontal Field of View, 1" Sensor:
40.9mm - 9.8°
Maximum Image Circle (mm):
21.60
Numerical Aperture NA, Object Side:
0.0316
Horizontal Field of View @ Max Sensor Format:
55.4mm - 13.2°
Horizontal Field of View, 4/3" Sensor:
55.4mm - 13.2°
Horizontal Field of View, 1.1" Sensor:
45.4mm - 10.8°
Number of Elements (Groups):
6 (4)
Horizontal Field of View, 1/1.8" Sensor:
23.0mm - 5.5°
Horizontal Field of View, 1/2.5" Sensor:
18.5mm - 4.4°
Type:
Fixed Focal Length Lens
Focal Length FL (mm):
75.00
Primary Magnification PMAG:
0.327
Maximum Sensor Format:
4/3"
Working Distance (mm):
250 - ∞
Mount:
C-Mount
Aperture (f/#):
f/4 - f/30
Coating:
λ/4 MgF2
Coating Specification:
λ/4 MgF2
Entrance Pupil Position (mm):
31.44
Horizontal Field of View, 1/4" Sensor:
11.5mm - 2.8°
Object Space Principal Plane (mm):
39.65
Image Space Principal Plane (mm):
-30.62
Field of View at Max Sensor Format:
Horizontal: 53mm - 13.2°
Vertical: 39.7mm - 9.9°
Diagonal: 66.2mm - 16.4°
Maximum Distortion (%):
0.16
Exit Pupil Position (mm):
-39.84
Lens Wavelength Range:
VIS
Imaging Lens Type:
Traditional Double-Gauss Style Lens
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 4/3", C-Mount Lens
  • Up to 9 MegaPixels, 2.8µm Pixel Size Sensors
  • Double Gauss (DG) Lens with low distortion and high performance
  • 18mm to 75mm Focal Length

TECHSPEC® DG Series Fixed Focal Length Lenses utilize a Double Gauss design to provide high-performance, low distortion, compact size, and exceptional value, while exceeding the performance of typically available fixed focal length lenses. These lenses feature a mechanical design that allows the focusing movement to be motorized by the user, yields image resolution greater than 100 lp/mm, and have a standard C-Mount. For most applications, the camera-lens combination can be attached to workstations using the ¼-20 mount provided on the camera. TECHSPEC® DG Series Fixed Focal Length Lenses include focus ring, manual iris, and set screws to facilitate a low profile integration in machine vision applications. Typical applications for the DG Series lenses include machine vision, assembly-line integration, and measurement and image analysis.

Note: Industrial Boom Stands are recommended for building vibration-free workstations.

#54-691, 75mm DG Series Fixed Focal Length Lens, Distortion Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Distortion Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Relative Illumination Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Relative Illumination Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#54-691, 75mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 250mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 250mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 250mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 250mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f4
#54-691, 75mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f4

Technical Information

 Dimensions
FL (mm) A (mm) B (mm) C (mm) D (mm) E (mm) F (mm)

Filter Thread

 (Dia. x Pitch)

18 48.0 32.3 4.6 40.0 - 2.5 M30.5 x 0.5
25 39.0 40.0 5.8 34.7 30.7 2.2 M30.5 x 0.5
35 45.0 50.1 11.6 40.0 42.1 0 M37.0 x 0.75
50 47.5 69.0 10.6 40.0 40.8 0 M39.0 x 0.5
75 54.0 116.2 19.2 46.0 67.7 0 M49.0 x 0.75