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6mm, f/1.8 Cr Series Fixed Focal Length Lens

6mm Cr Series Fixed Focal Length Lens

6mm Cr Series Fixed Focal Length Lens

Stock #35-140
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Focal Length FL (mm):
Maximum Sensor Format:
Horizontal Field of View @ Max Sensor Format:
110.2mm - 62.1°
Aperture (f/#):
Working Distance (mm):
75 - ∞
425 - 675nm BBAR
Diameter (mm):
Horizontal Field of View, 1/1.8" Sensor:
110.2mm - 62.1°
Horizontal Field of View, 1/2" Sensor:
96.8mm - 55.9°
Horizontal Field of View, 1/2.5" Sensor:
86.9mm - 51.0°
Horizontal Field of View, 1/3" Sensor:
71.0mm - 42.7°
Horizontal Field of View, 1/4" Sensor:
52.6mm - 32.4°
Filter Thread:
M43 x 0.75 with required adapter #89-940
Front Thread:
M34.0 x 0.5 (Male)
Length (mm):
Number of Elements (Groups):
9 (7)
Iris Option:
Fixed Focal Length Lens
Weight (g):
Front Diameter (mm):

Regulatory Compliance


Product Family Description

  • Compact Ruggedized (Cr) Versions of our C Series Lenses
  • Ruggedized to Minimize Pixel Shift After Shock and Vibration
  • Individual Optics Glued in Place to Maintain Optical Pointing Stability
  • 50G Shock Rating with Sub-Micron Pixel Shift of <1µm

TECHSPEC® Compact Ruggedized (Cr) Series Fixed Focal Length Lenses are Stability Ruggedized, protecting the lens from damage while maintaining optical pointing and positioning after shock and vibration. All individual lens elements are glued in place to reduce object shift on the image. In addition, these lenses feature robust mechanics with a simplified focus and stainless steel locking C-mount clamp. TECHSPEC® Cr Series Fixed Focal Length Lenses are ideal for calibrated imaging systems such as measurement and gauging, 3D stereo vision, robotics and sensing, autonomous vehicles, and object tracking. The object to image mapping is maintained even after heavy shock and vibration; if the center of the object maps onto the center pixel, it will always map to that same center pixel.

These lenses won the 1st place 2018 Inspect Award and the Silver Level 2018 Innovators Award.

Note: To learn more about ruggedization, visit our Ruggedization Resource Webpage.

Edmund Optics has created a family of high performance optical designs (the C Series family) and developed 5 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the C Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

How to focus a Cr Series Lens
How to focus a Cr Series Lens

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