

2.5mm M14 wide angle industrial lens with 127° FOV, F1.2 aperture, 0.2m M.O.D., 1/2″ format support, and 2.21mm F.B.L.
S02512011013IR is Wide angle lens with M14X0.5 mount, 127° diagonal F.O.V. for 1/2″ sensor, 640*480 resolution, and F1.2 aperture for security surveillance.
| IMAGE FORMAT | Max Φ8.2mm |
| FOCAL LENGTH | 2.5mm |
| F.O.V. (1/2″) | 127°(D) |
| 111°(H) | |
| 92°(V) | |
| DISTORTION | <-14.9% |
| RESOLUTION | 640*480 |
| APERTURE | F1.2 |
| MOUNT | M14X0.5 |
| IRIS | Fixed |
| F.B.L. | 2.21mm |
| M.O.D. | 0.2m |
| C.R.A. | <1.2° |
| STRUCTURE | 3G+2ASPG |
This 2.5mm M14 wide angle lens is designed for compact industrial and machine vision systems that require a broad field of view while maintaining a practical working distance. With a 127° diagonal FOV on a 1/2″ format, F1.2 aperture, 0.2m M.O.D., and M14×0.5 mount, it provides a compact optical solution for wide-area imaging and embedded vision applications.
The combination of a 2.5mm focal length and 127° diagonal field of view makes this lens suitable for applications where a large scene needs to be captured from a relatively short installation distance. The 0.2m minimum object distance also makes it practical for close-range monitoring and inspection environments where the camera cannot be positioned far from the target.
With < -14.9% distortion, this is a wide-angle optical design rather than a low-distortion inspection lens. It is therefore more appropriate for scene coverage, monitoring, and wide-area visual perception than precision dimensional measurement.
Designed for wide-area industrial imaging and close-range embedded vision applications, this lens combines a 127° diagonal FOV with a 0.2m minimum object distance and F1.2 aperture.
For related industrial optical solutions, explore TOWIN’s Industrial Lens range and Machine Vision Solution. For applications where the required field of view must be calculated from the sensor and working distance, the FOV Calculator can be used during lens selection.
The specified 127° D / 111° H / 92° V FOV applies to the 1/2″ format. Actual coverage depends on the camera sensor dimensions, working distance, mounting position, and complete optical system.
For additional guidance on matching sensor format and lens characteristics, see the TOWIN Sensor Guide and Lens Selection Guide.
Q: What type of lens is this?
A: This is a 2.5mm M14 fixed focal wide angle lens designed for 1/2″ camera systems and compact industrial imaging applications.
Q: What is the field of view on a 1/2″ sensor?
A: The specified FOV is 127° diagonal, 111° horizontal, and 92° vertical when used with the 1/2″ format.
Q: Is this lens a fisheye lens?
A: It is not assigned as a primary fisheye lens based only on the supplied specifications. Although the 127° diagonal FOV is very wide, the manufacturer’s optical design classification would be needed to definitively identify it as fisheye.
Q: Is this a low distortion lens?
A: No. The specified distortion is < -14.9%, which is relatively significant. The lens is better positioned as a wide-angle lens rather than a low-distortion optical solution.
Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, meaning the lens is designed to focus on objects from approximately 0.2 meters under the specified optical configuration.
Q: What does the F1.2 aperture provide?
A: F1.2 provides a bright optical path, allowing more light to reach the sensor compared with a smaller maximum aperture. This can be useful in indoor or illumination-limited imaging environments.
Q: What is the mounting interface?
A: The lens uses an M14×0.5 mount and should be paired with a compatible camera housing or lens holder.
Q: What does the C.R.A. specification mean?
A: C.R.A., or Chief Ray Angle, is specified as <1.2° for this lens. This optical parameter can be relevant when matching the lens to a particular image sensor and camera architecture.
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