OPT
OPT-S2556 S-Mount (M12) lens
Manufacturer part number: OPT-S2556
Series: M12-Festbrennweiten
- Focal length
- 25 mm
- Max. Sensorformat
- 1/1.7" (3.45 µm)
- Mount
- S-Mount (M12)
- Mindestobjektdistanz (MOD)
- 150 mm
- Aperture
- F5.6
- Resolution
- 3.5 MP (berechnet)
- Fokusbereich (ab Objektivvorderseite)
- 150 mm up to ∞
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| Manufacturer part number | OPT-S2556 |
|---|---|
| Focal Length(mm) | 25 mm |
| Aperture(F/#) | F5.6 |
| Image Circle Ø(mm) | Ø9.3 mm (1/1.7") |
| Working Distance(mm) | 150 mm – ∞ |
| Magnification（X） | 0.179 × at WD 150 |
| Image Resolution(µm) | 3.45 µm |
| TV Distortion(%) | <0.08 % at WD 400 |
| Back Focal Length(mm) | 10.04 mm at WD 150 | 5.57 mm at ∞ |
| Effective Diameter Front(mm) | 6.2 mm |
| Effective Diameter Back(mm) | 9.4 mm |
| Chief Ray Angle | <5.5° |
| Mount | S-Mount (M12) |
| Weight(kg) | 0.005 kg |
| Size(mm) | 14.00 × 18.89 |
| Working Temperature | -20 °C – +60 °C |
| Coaxial | no |
| Flange Focal Distance(mm) | 21.83 mm |
| Lens Type | Festbrennweite |
| Max. Sensorformat | 1/1.7" |
| Auflösung | 3.5 MP (von uns berechnet) |
| Pixelgröße | 3.45 µm |
| Mindestobjektdistanz (MOD) | 150 mm |
| Spektralbereich | Nicht angegeben |
| Verzeichnung (max.) | < 0.08 % |
| Filtergewinde | Nicht angegeben |
| Blendensteuerung | Nicht zutreffend |
| Vibrationsfest | No |
| Baulänge | 18.89 mm |
| Durchmesser | Ø 14 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-S2556 (PDF)
Datasheet · EN · 130 KB
- Download datasheet
Optische Daten (MTF) OPT-S2556
Datasheet · EN · 4920 KB
Description
With focal length 25 mm, aperture F5.6, image circle Ø9.3 mm (1/1.7"), OPT-S2556 belongs to the series “M12 Fixed Focal Length Lenses” by OPT Machine Vision. In addition: working distance 150 mm - ∞, S-Mount (M12).
The M12 series brings OPT optics to the S-Mount format: short overall length, fixed aperture F5.6 with large depth of field and a resolution close to the diffraction limit for sensors up to 1/1.7". The chief ray angle stays below 7.45°, so the illumination remains uniform. It sits in board-level cameras, smart cameras and code readers where a C-Mount lens would not fit.
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 is included.