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1/4″ Fisheye Lenses

Brief Description:

  • Fisheye Lens for 1/4″ Format Sensor
  • 5 to 8.8 Mega Pixels
  • M8/M12 Mount Lens
  • 0.76mm to 0.99mm Focal Length
  • Up to 205 degrees HFOV


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Model Sensor Format Focal Length(mm) FOV (H*V*D) TTL(mm) IR Filter Aperture Mount Unit Price
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1/4’’ Series Fisheye Lenses are designed for creating fisheye images on a 1/4’’ sensor or smaller and offer views of up to 205 degrees.They are excellent for applications as follows:

  • Sports DV camera
  • AR VR monocular imaging and binocular and binocular stitching
  • High-end car
  • UVA
  • Security Monitoring
  • Industry
  • Astronomical Observation
  • Meteorological monitoring
  • Forest Fire Prevention
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When used on a 1/4’’ sensor, CH2504 will produce a circular image like this →dvwith a 205 degrees view,while CH3631 will form a full horizontal one like this →ergwith a slightly smaller view angle as194 degrees.

Both lenses have their advantages. CH2504 features all glass design mounted in a aluminum housing, which makes it heat resisting. CH3631 is IP69 rated against dust and water,which means it can be used both indoor and outdoor, and its 8.8MP high resolution enable users to get sharp images.

Like all other fisheye lenses, images obtained from the1/4’’series fisheye lens have a barrel distortion where the centre of the frame appears to bulge outwards.However,they provide a large depth of field. The image below was captured by CH2504 (it was compressed as uploaded).

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Comparison between CH2504 and CH3631

CH2504 (1/4’’)

CH3631(1/4’’)

Resolution 5MP Resolution 8.8MP
F.O.V 205°205°205° F.O.V 194°132°200°
Image Circle ф2.0mm(V-MAX) Image Circle ф4.0mm(MAX)
TV Distortion <-81% TV Distortion <-139%
Lens Structure 6G Lens Structure 4G2P
Waterproof × Waterproof IP69
Mount Type M8/M12 Mount Type M12

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