4/3" DG Series Fixed Focal Length Lenses
• Lowest Distortion TECHSPEC® Lens (0.3% or Less Distortion)
• Up to 9 MegaPixels, 2.8μm Pixel Size Sensors
• 4/3", C-Mount Lens
TECHSPEC® 4/3" 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. These lenses include focus ring, manual iris, and set screws to facilitate a low profile
integration in machine vision applications. Typical applications include machine vision, assembly line integration,
and measurement and image analysis.
Note: Industrial Boom Stands are recommended for building vibration-free workstations.
Call for OEM quantity pricing.
4/3" DG Series Lens Kit
Focusing Kit: Contains one each (5) of our focusing DG Series lenses in a wooden storage box with foam lining.
Dimensions #55-225 £1,431.40
Max.
Outer
Diameter
(A)
Filter
Thread
Groove for 1/8" Pulley Belt
(not on 18mm)
Motor Length (C)
Overall Length (B)
Dist. to Groove (E)
Rear Protrusion (F)
Motor Mount
Diameter (D)
C-Mount
Iris Adjustment
Focus Locking Screw Iris Locking Screw
328 +44 (0) 1904 788600 | Edmund Optics® N NEW PRODUCT NEW LOW PRICE
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Linear Polarizing Filters
Mount
Dia. x Pitch
Stock No. Price
M30.5 x 0.50 #46-574 £27.63
M37.0 x 0.75 #52-556 £29.32
M49.0 x 0.75 #36-440 £32.73
Color Filters
Mount
Dia. x Pitch
Red Green Blue
Stock No. Price Stock No. Price Stock No. Price
M30.5 x 0.50 #46-545 £41.65 #46-546 £41.65 #46-547 £41.65
M37.0 x 0.75 #58-642 £43.77 – – N/A –
M49.0 x 0.75 #54-763 £43.77 #54-769 £43.77 #54-775 £43.77
Units: mm
FL A B C D E F 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
Distortion: <0.3% @ 400mm WD
18mm FL: <2% @ 400mm WD
Coating: l/4 MgF2 @ 550mm
TECHSPEC® 4/3" DG Series Fixed Focal Length Lenses
Focal Length
(mm)
Max.
Sensor
PMAG
Range
Aperture
(f/#)
Horiz. FOV
4/3" Sensor
Horiz. FOV
1.1" Sensor
Horiz. FOV
1" Sensor
Horiz. FOV
2/3" Sensor Distortion Min. Working
Distance (mm)
Weight
(g) Stock No. Price
18 1" 0X - 0.074X f/4 - f/12 – – 159.2mm - 38.4° 108.7mm - 26.8° <2% 210 116 #54-857 £455.60
25 1.1" 0X - 0.106X f/4 - Closed – 142.9mm - 31.6° 128.8mm - 28.7° 88.4mm - 19.9° <0.3% 240 85 #55-326 £455.60
35 1.1" 0X - 0.15X f/4 - Closed – 99.2mm - 23.0° 89.4mm - 20.8° 61.5mm - 14.4° <0.3% 240 142 #54-689 £455.60
50 4/3" 0X - 0.22X f/4 - f/18 78.7mm - 19.3° 64.6mm - 15.9° 58.2mm - 14.4° 40.1mm - 9.9° <0.3% 240 174 #54-690 £455.60
75 4/3" 0X - 0.35X f/4 - f/30 55.4mm - 13.2° 45.4mm - 10.8° 40.9mm - 9.8° 28.1mm - 6.7° <0.3% 250 436 #54-691 £498.95
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