

2.8mm wide – angle lens 1/2.7″ M12/S-mount lens, F2.0 2-Megapixel resolution CCTV lens.
S02812711820 is 2.8mm wide angle lens 1/2.7″ M12/S-mount lenses with Low F-number (Fast Lenses), F2.0 2-Megapixel resolution CCTV lens.
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 2.8mm |
| F.O.V.(OV2710) | 140°(D) |
| 118°(H) | |
| 64°(V) | |
| RESOLUTION | 2MP(1920×1080) |
| DISTORTION | <-59% |
| APERTURE | F2.0 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| T.T.L. | 22.31mm |
| CONSTRUCTION | 2G4P |
This 2.8mm M12 lens is designed for compact camera systems that require a wide field of view in a small optical package. With a 140° diagonal FOV on the OV2710 sensor, 2MP resolution, F2.0 aperture, and M12×0.5 mount, it provides broad scene coverage for security cameras, monitoring devices, embedded vision systems, and other space-constrained imaging applications.
The combination of a short 2.8mm focal length and 1/2.7″ image format makes this M12 wide angle lens suitable for applications where capturing a large area from a relatively short working distance is more important than maintaining low geometric distortion.
The 2.8mm focal length and 140° diagonal field of view make this lens particularly useful when a camera needs to observe a relatively large area from a limited installation position. Its compact M12 interface also allows integration into small camera housings where a conventional C-Mount or CS-Mount lens may be too large.
Designed for wide-area security monitoring applications, this lens provides broad scene coverage while maintaining a compact M12 form factor.
For applications requiring an even wider or specialized M12 optical configuration, users can explore TOWIN’s M12 Lenses collection. For products specifically designed around broad viewing angles, see the Wide Angle Lens category.
This lens can be integrated into:
For projects where lens selection depends on sensor size, focal length, and required field of view, TOWIN’s Sensor Guide and Lens Selection Guide provide additional technical guidance.
A short focal length is useful when the camera must cover a large scene without moving farther away from the subject. With a 140° diagonal FOV and 118° horizontal FOV, this lens is optimized for broad scene observation rather than telephoto or narrow-field imaging.
The F2.0 aperture also provides a practical optical configuration for general indoor and security applications. Combined with the M12 × 0.5 mount, manual focus, and fixed iris, the design is well suited to compact camera assemblies where simple mechanical integration and wide coverage are key requirements.
If your project requires a different field of view, focal length, sensor format, or mechanical configuration, TOWIN provides a broader range of M12 Lenses and can support customized lens requirements.
Q: What is the field of view of this 2.8mm M12 lens?
A: When used with the specified OV2710 sensor, the lens provides a 140° diagonal, 118° horizontal, and 64° vertical field of view.
Q: What sensor size is this lens designed for?
A: This lens is designed for a 1/2.7″ image format and is specified with the OV2710 sensor.
Q: Is this lens suitable for CCTV cameras?
A: Yes. Its 2.8mm focal length, wide field of view, F2.0 aperture, and compact M12 mount make it suitable for compact CCTV and security camera applications where broad scene coverage is required.
Q: Is this a low-distortion lens?
A: No. The specified distortion is less than -59%, so this lens should not be positioned as a low-distortion optical solution. It is designed primarily for wide-area coverage.
Q: What type of mount does this lens use?
A: The lens uses an M12 × 0.5 mount, making it compatible with camera modules and compact imaging systems designed for M12 lenses.
Q: Does the lens have adjustable zoom?
A: No. It uses a fixed focal length of 2.8mm and a fixed zoom configuration. Focus is manually adjustable.
Q: What is the aperture of this lens?
A: The lens has a fixed F2.0 aperture, providing a practical optical configuration for general-purpose wide-angle imaging.
Q: Can TOWIN provide other focal lengths or customized M12 lenses?
A: Yes. TOWIN offers a broad range of M12 optical solutions and can discuss customized focal length, sensor format, mechanical, and optical requirements for specific projects. You can contact TOWIN with your camera and application requirements.
Choosing the correct focal length is important when designing a wide-angle camera because focal length directly affects the resulting field of view. TOWIN’s FOV Calculator can help estimate the required field of view for a camera system, while the Lens Basics section provides fundamental information about focal length, sensor size, aperture, and other optical parameters.
For applications requiring a different optical configuration, you can browse TOWIN’s Products or explore the dedicated M12 Lens Solution.
For customized lens development, OEM/ODM requirements, or project-specific optical specifications, contact TOWIN to discuss your application.
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