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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

DG Series Fixed Focal Length Lenses

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  • 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.

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Technical Information

Technical diagram of 18mm MVO focusing Double Gauss macro imaging lens with detailed dimensions and adjustment labels
Modulation transfer function curves showing contrast versus image resolution for 18mm double Gauss lens at on axis and off
Technical diagram showing dimensions and labeled parts of 25mm MVO focusing double Gauss macro imaging lens
Modulation transfer function curves showing contrast versus image resolution for 25mm Double Gauss lens at different offsets
Graph showing depth of field line profile and relative contrast for 25mm Double Gauss lens at 0.06X PMAG
Technical diagram of 35mm MVO focusing double Gauss macro imaging lens with dimensions and labeled parts
Modulation transfer function curves showing contrast versus image resolution for 35mm double Gauss lens at different axis
Graph showing depth of field curve for 35mm Double Gauss lens at 0.09X PMAG and 11 lp/mm
Technical diagram showing dimensions and adjustment features of 50mm MVO focusing double Gauss macro imaging lens
Modulation transfer function curves showing contrast versus image resolution for 50mm double GaAs at different off-axis
Graph showing depth of field curve for 50mm double Gauss lens at 0.13X PMAG and 11 lp/mm
Technical diagram showing dimensions and labeled parts of 75mm MVO focusing double Gauss macro imaging lens
Modulation transfer function curves showing contrast versus image resolution for 75mm double Gauss lens at different
Graph showing depth of field line profile at 0.20X PMAG for 75mm Double Gauss lens with relative contrast
Diagram showing camera lens dimensions and labeled features including max diameter, motor length, iris adjustment, and
 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
 
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