F2.8-F16 Cobra Series Fixed Focal Length Lenses Focal Length 12mm 100-∞ WD 0.06kg OPT-COB1228
Product Features
◆ The aperture F/# of cobra series fixed focal length lenses is F2.8-F16.
◆ Low distortion design that TV distortion is less than 0.2%
◆ Relative Illumination is high that lens' main light angle is less than 5°. Matching with cameras enables to gain high evenness image.
◆ The OPT-COB0828 working distance is 100-∞.
◆ Suitable for image circle of 9mm sensor
◆ Len filter thread is M27*P0.5.
◆ Cobra series fixed focal length lenses OPT-COB1228 focal length is 12mm.
◆ Back focal length (mm): back focal length is 14mm when its working distance is 100mm; back focal length is 12.76mm when its working distance is infinity.
◆ Weight of OPT-COB1228 fixed focal length lens is 0.06kg.
◆ The resolution of cobra series fixed focal length lenses OPT-COB1228 is 2.2µm.
◆ TV distortion is less than 0.16% at working distance of 300mm.
◆ Magnification at MOD is 0.101X at working distance of 100mm.
◆ Chief Ray Angle ＜5°.
Model Explanation
OPT-COB1228
OPT: Brand name
C: C-Mount
OB: Cobra series lenses
12: Focal length: 12mm
28: F#: 2.8
Specifications
| Product Name | Cobra Series Fixed Focal Length Lenses |
| Model | OPT-COB1228 |
| Focal Length | 12mm |
| Aperture range | F2.8-F16 |
| Working Distance(mm) | 100-∞ |
| Filter thread | M27*P0.5 |
| TV Distortion(%) | Less than 0.16% at working distance of 300mm |
| Back focal length (mm) | 14mm when its working distance is 100mm 12.76mm when its working distance is infinity |
| Weight(kg) | 0.06kg |
| Image circle Ø (mm) | 9mm |
| Resolution (µm) | 2.2µm |
| Chief Ray Angle | ＜5° |
| Magnification(x) at MOD | 0.101X at working distance of 100mm |
Resolution Comparison
Image taken via OPT-COB1620 Image taken via other lens
Application Examples:
Absent or not detection
Dimensions (mm)
| OPT-COB1228 |
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