OPT
OPT-COBR2556B C-Mount lens
Manufacturer part number: OPT-COBR2556B
Series: Cobra Ruggedized
- Focal length
- 25 mm
- Max. Sensorformat
- 2/3" (2.2 µm)
- Mount
- C-Mount
- Mindestobjektdistanz (MOD)
- 150 mm
- Aperture
- F5.6
- Filtergewinde
- M25 × 0.5
- Resolution
- 12 MP (berechnet)
- Fokusbereich (ab Objektivvorderseite)
- 150 mm up to ∞
- Fokuseinstellung
- Manual
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| Manufacturer part number | OPT-COBR2556B |
|---|---|
| Focal Length(mm) | 25 mm |
| Adjustion Type | manuell |
| Aperture(F/#) | F5.6 |
| Image Circle Ø(mm) | Ø11 mm (2/3") |
| Working Distance(mm) | 150 mm – ∞ |
| Magnification（X） | 0.159 × at WD 150 |
| Image Resolution(µm) | 2.2 µm |
| TV Distortion(%) | <0.15 % at WD 300 |
| Back Focal Length(mm) | 16.63 mm at WD 150 | 12.65 mm at ∞ |
| Effective Diameter Front(mm) | 15.6 mm |
| Effective Diameter Back(mm) | 11.9 mm |
| Chief Ray Angle | <5 |
| Mount | C-Mount |
| Weight(kg) | 0.05 kg |
| Size(mm) | 29 × 32.02 |
| Filter Thread | M25×0.5-6g |
| Working Temperature | -20 °C – +60 °C |
| Max. Sensorformat | 2/3" |
| Auflösung | 12 MP (von uns berechnet) |
| Pixelgröße | 2.2 µm |
| Mindestobjektdistanz (MOD) | 150 mm |
| Spektralbereich | Nicht angegeben |
| Verzeichnung (max.) | < 0.15 % |
| Blendensteuerung | Nicht zutreffend |
| Vibrationsfest | Yes |
| Baulänge | 32.02 mm |
| Durchmesser | Ø 29 mm |
| Lens type | Entocentric |
Data according to the manufacturer's documentation. The current manufacturer datasheet, quotation and order confirmation are authoritative. Errors and changes excepted.
Dimensional drawing
Documents
- Download datasheet
Datasheet mit Maßzeichnung OPT-COBR2556B (PDF)
Datasheet · EN · 191 KB
- Download datasheet
Optische Daten (MTF) OPT-COBR2556B
Datasheet · EN · 1 MB
- Download
3D-Modell OPT-COBR2556B (STEP, Grundmodell OPT-COBR2528-V1.0)
Technical drawing · EN · 3 MB
Description
OPT-COBR2556B is a vibration-resistant fixed focal length lens from the series “Cobra Ruggedized” by OPT: focal length 25 mm, aperture F5.6, image circle Ø11 mm (2/3"). In addition: working distance 150 mm - ∞, C-Mount.
Cobra Ruggedized is the vibration-resistant version of the Cobra series: fixed aperture, bonded lens groups and a housing under Ø26 × 42.6 mm. Shocks and continuous vibration shift neither focus nor optical axis; the resolution stays at up to 200 lp/mm for sensors up to 2/3". Intended for robots, vehicles, presses and anything that vibrates - wherever an adjustable lens would need readjusting after a short time.
When choosing a lens, what counts is the interplay of sensor size, pixel size, field of view and working distance - the focal length alone says little. If you tell us your camera and inspection task, we check the combination and, if needed, suggest suitable lighting to go with it. The dimensional drawing and the STEP model are included.