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55mm Focal Length Partially Telecentric Video Lens

55mm Focal Length Partially Telecentric Video Lens, #52-271

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Stock #52-271
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$695.00
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$695.00
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Iris Option:
Variable
Horizontal Field of View, 1/2" Sensor:
Non-Telecentric: 12.8mm - 6.7°
Telecentric: 12.8 - 16.0mm
Filter Thread:
M43 x 0.75
Weight (g):
314.68
Note:
PMAG: Non-Telecentric: 0.5X - 0X
Telecentric: 0.5X - 0.4X
Working Distance (mm): Non-Telecentric: 127 - ∞
Telecentric: 127 - 158.75
Type:
Telecentric Lens
Focal Length FL (mm):
55.00
Primary Magnification PMAG:
0.5X - 0.4X
Maximum Sensor Format:
2/3"
Working Distance (mm):
127 - 158.75
Mount:
C-Mount
Aperture (f/#):
f/2.8 - f/32
Distortion (%):
<1.0

Regulatory Compliance

Reach 174:
Certificate of Conformance:

Product Family Description

  • 2/3", C-Mount Lens
  • Up to 1.3 MegaPixels, 7µm Pixel Size Sensors
  • Function as Both Macro and Telecentric Lens
  • ±12.5mm of Object Movement Before 1% Error Image Scale Occurs

Telecentric lenses yield constant magnification over a range of working distances, virtually eliminating viewing angle error. The 55mm focal length telecentric lens allows ±12.5mm of object movement (at 0.5X magnification) before a 1% error in image scale occurs, while conventional lenses permit typically ±1.7mm of movement under the same conditions. The lens’ protective window (at C-Mount end) needs to be removed for use with adapter lenses.

These lenses are ideal in machine vision applications requiring accurate measurement of three-dimensional objects with slight height variations. By eliminating the perspective distortion and magnification error inherent in conventional lenses, they yield dimensionally accurate images that are easily interpreted by software.

For mounting these lenses, our Industrial Boom Stands and mounting adapters are recommended as workstation platforms. Ring light guides can not be mounted directly on this lens because of the front focusing adjustment.

 
  Telecentric Specifications Non-Telecentric Specifications
Lens with 2X Converter Lens with 2X Converter Lens with 0.75X Converter
Primary Magnification PMAG 1.0X - 0.4X (full range) 1.0X - 0X 0.375X - 0X
Field of View 6.4 - 16.0mm 6.4mm - 3.3° 17.0 - 8.9°
Working Distance 5.25" - 11.25" 5.25" - ∞ 5" - ∞
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