Cobra Series Fixed Focal Length Lenses Focal Length 8mm 100-∞ WD F2.8-F16 0.05kg OPT-COB0828
Product Features
◆ The cobra series fixed focal length lenses aperture F/# is F2.8-F16.
◆ Low distortion: TV distortion < 0.2%
◆ High Relative Illumination: Lens' main light angle <5°, matching with cameras enables to realize high evenness image.
◆ The working distance of the OPT-COB0828 is 100-∞.
◆ Suitable for image circle of 8mm sensor
◆ Filter thread is M27*P0.5.
◆ Focal length of cobra series fixed focal length lenses OPT-COB0828 is 8mm.
◆ Back focal length (mm): back focal length is 12.99mm when its working distance is 100mm; back focal length is 12.34mm when its working distance is infinity.
◆ Weight of OPT-COB0828 fixed focal length lens is 0.05kg.
◆ The resolution of cobra series fixed focal length lenses OPT-COB0828 is 2.2µm.
◆ TV distortion is less than 0.18% at working distance of 300mm.
◆ Magnification at MOD is 0.071X at working distance of 100mm.
◆ Chief Ray Angle is less than 5°.
Model Explanation
OPT-COB0828
OPT: Brand name
C: C-Mount
OB: Cobra series lenses
08: Focal length: 8mm
28: F#: 2.8
Specifications
| Product Name | Cobra Series Fixed Focal Length Lenses |
| Model | OPT-COB0828 |
| Focal Length | 8mm |
| Aperture range | F2.8-F16 |
| WD(mm) | 100-∞ |
| Filter thread | M27*P0.5 |
| TV Distortion(%) | Less than 0.18% at working distance of 300mm |
| Back focal length (mm) | 12.99mm when its working distance is 100mm 2.34mm when its working distance is infinity |
| Weight(kg) | 0.05kg |
| Image circle Ø (mm) | 9mm |
| Resolution (µm) | 2.2µm |
| Chief Ray Angle | less than 5° |
| Magnification(x) at MOD | 0.071X at working distance of 100mm |
Resolution Comparison
Image taken via OPT-COB1620 Image taken via other lens
Application Examples:
Gauging for metal parts
Dimensions (mm)
| OPT-COB0828 |
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