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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
0.25X 2/3" GoldTL™ Telecentric Lens

#55-349 (0.25X)

#55-349 (0.25X)

Stock #55-349
Qty 1
Volume Pricing
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Primary Magnification PMAG:
Maximum Sensor Format:
FOV @ Max Sensor Format, H x V (mm):
35.2 x 26.4
Aperture (f/#):
f/6 - f/25
Working Distance (mm):
161 - 186
MgF2 (400-700nm)
Telecentric Lens
Coating Specification:
λ/4 MgF2 @ 550nm
Depth of Field (mm):
±8.2 at f/10 (20% @ 20 lp/mm)
Field of View, 1/2" Sensor:
Field of View, 2/3" Sensor:
Filter Thread:
M72 x 0.75
Length excluding Threads (mm):
Maximum Diameter (mm):
Number of Elements (Groups):
10 (7)
Numerical Aperture NA, Object Side:
Resolution, Image Space MTF @ f/10:
>55% @ 40 lp/mm
Stock No. of Mounting Clamp:
#56-026 Sold Separately
Typical Distortion @ 588nm (%):
Typical Telecentricity @ 588nm (°):
Weight (kg):

Regulatory Compliance

RoHS 2015:
REACH 201:

Product Family Description

  • Focusable to Allow for Working Distance Adjustment
  • High Light Throughput f/6 Designs
  • Designed for ½” and 2/3” Sensor Formats
  • <0.2° Telecentricity

TECHSPEC® GoldTL™ Telecentric Lenses were designed specifically for machine vision and metrology applications. The unique focusable design allows for working distance adjustment, while still providing <0.2° telecentricity. These lenses also feature high resolutions, low distortions, and are available for ½” or 2/3” sensors. TECHSPEC® GoldTL™ Telecentric Lenses have a front filter thread for easy integration of color filters, polarizers or other mounted components. Both the iris and focusing adjustment positions can be fixed by set screws to remain secure in high vibration environments.

Technical Information

Telecentric Lens Mounting Clamp Dimensions

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