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All Products / Imaging Lenses / Fixed Focal Length Lenses / DG Series Fixed Focal Length Lenses
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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

25mm DG Series Fixed Focal Length Lens

25mm Focal Length, #55-326

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Stock #55-326 In Stock
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€610,00
Qty 1-49
€610,00
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Specifications

General

Type:
Fixed Focal Length Lens
Imaging Lens Type:
Traditional Double-Gauss Style Lens

Physical & Mechanical Properties

Iris Option:
Variable
Length (mm):
116.20
Maximum Diameter (mm):
54
Weight (g):
85
Maximum Rear Protrusion (mm):
3.5

Optical Properties

Horizontal Field of View, 1/2" Sensor:
64.2mm - 14.6°
Horizontal Field of View, 2/3" Sensor:
88.4mm - 19.9°
Horizontal Field of View, 1/3" Sensor:
48.2mm - 10.9°
Horizontal Field of View, 1" Sensor:
128.8mm - 28.7°
Maximum Image Circle (mm):
17.60
Numerical Aperture NA, Object Side:
0.0114
Horizontal Field of View @ Max Sensor Format:
142.9mm - 31.6°
Horizontal Field of View, 1.1" Sensor:
142.9mm - 31.6°
Number of Elements (Groups):
7 (5)
Horizontal Field of View, 1/1.8" Sensor:
72.3mm - 16.4°
Horizontal Field of View, 1/2.5" Sensor:
58.2mm - 13.2°
Focal Length FL (mm):
25.00
Primary Magnification PMAG:
0.1
Working Distance (mm):
240 - ∞
Aperture (f/#):
f/4 - Closed
Coating:
λ/4 MgF2
Coating Specification:
λ/4 MgF2
Entrance Pupil Position (mm):
10.22
Horizontal Field of View, 1/4" Sensor:
36.1mm - 8.2°
Object Space Principal Plane (mm):
11.79
Image Space Principal Plane (mm):
-11.43
Field of View at Max Sensor Format:
Horizontal: 141.7mm - 31.4°
Vertical: 106.1mm - 23.8°
Diagonal: 177.5mm - 38.7°
Maximum Distortion (%):
0.03
Exit Pupil Position (mm):
-13.11
Lens Wavelength Range:
VIS

Sensor

Maximum Sensor Format:
1.1"

Threading & Mounting

Filter Thread:
M30.5 x 0.50 (Female)
Mount:
C-Mount

Environmental & Durability Factors

Storage Temperature (°C):
-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS 2015:
Exempt
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REACH 201:
Compliant
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Certificate of Conformance:
View
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Product Details

  • 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.

Technical Information

#55-326, 25mm DG Series Fixed Focal Length Lens, Distortion Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Distortion Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Relative Illumination Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Relative Illumination Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#55-326, 25mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 240mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 240mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 240mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 240mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f4
#55-326, 25mm DG Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f4
 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

Compatible Cameras