

3.1mm M12 ultra-wide angle lens with 145° diagonal FOV, 120° horizontal FOV, 2MP OV2710 support, and compact 14mm TTL for embedded cameras, smart security, and wide-area imaging.
CCL127031MPF is 3.1mm Wide-angle with Built-In Filter 2-megapixel 1/2.7″ High Resolution M12/S-Mount CCTV lens 145° F3.0 security surveillance lens.
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 3.1mm |
| F.O.V.(OV2710) | 145°(D) |
| 120°(H) | |
| 70°(V) | |
| RESOLUTION | 2 MegaPixel |
| TV DISTORTION | <23% |
| APERTURE | F3.0 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| T.T.L. | 14.00mm |
| STRUCTURE | 3G1P+IR filter |
This 3.1mm M12 ultra-wide angle lens is designed for compact camera modules that require extensive scene coverage in a limited installation space. With a 145° diagonal FOV and 120° horizontal FOV, it provides broad image coverage for smart security, embedded vision, monitoring, and other space-constrained imaging systems.
Its M12×0.5 mount, 2MP resolution support, fixed aperture, manual focus, and compact 14.00mm TTL make it suitable for integrating wide-angle imaging into small camera platforms. For more options, explore TOWIN’s M12 Lenses and Wide Angle Lenses solutions.
This M12 ultra-wide angle lens is intended for applications where a camera needs to capture a large area from a short installation distance. Its 120° horizontal FOV can help reduce blind spots and increase scene coverage without requiring multiple camera modules.
Typical applications include:
For applications that require particularly broad scene coverage, the lens can complement TOWIN’s Smart Security and M12 Lens Solutions.
Smart Security Cameras
The 120° horizontal FOV helps compact security cameras monitor entrances, rooms, corridors, and other relatively wide areas from a fixed installation position.
Door and Entrance Cameras
The short 3.1mm focal length provides broad coverage for door-entry monitoring, visitor detection, and compact access-control camera modules.
Embedded Camera Modules
The M12×0.5 mount and 14.00mm TTL make the lens suitable for camera designs where optical space and mechanical dimensions are limited.
IoT and Smart Home Cameras
The ultra-wide viewing angle can provide broad room coverage for compact connected imaging devices.
Compact Surveillance Devices
The fixed focal configuration provides a straightforward optical solution for monitoring equipment that operates from a predetermined installation distance.
Designed for compact wide-area imaging applications where broad FOV, short optical dimensions, and M12 mechanical compatibility are important.
Q: What is the main advantage of this 3.1mm M12 lens?
A: Its key benefit: 3.1mm focal length paired with 120° horizontal FOV, enabling compact cameras to capture wide scenes at close range.
Q: Is this lens suitable for the OV2710 sensor?
A: Yes. The optical specification is provided for the OV2710 sensor and supports a 2MP imaging configuration.
Q: Is this an M12 lens?
A: Yes. It uses an M12×0.5 mount, making it compatible with camera modules and mechanical systems designed for standard M12 lens interfaces.
Q: Is this lens a low-distortion lens?
A: No. With TV distortion specified below 23%, this lens should be positioned as an ultra-wide angle lens rather than a low-distortion lens. Applications requiring highly accurate geometric imaging should consider a dedicated Low Distortion Lens.
Q: Can this lens be used for security cameras?
A: Yes. Its wide FOV and compact M12 design make it suitable for compact surveillance, entrance monitoring, indoor security, and embedded camera applications.
Q: What does the IR filter in the optical structure mean?
A: The 3G1P + IR filter structure indicates that an IR filter is incorporated into the optical configuration. This should not be interpreted as an IR-corrected optical design. For applications requiring stable focus across visible and near-infrared wavelengths, an IR Corrected Lens should be considered.
Q: Is the focus adjustable?
A: Yes. The lens uses manual focus, allowing the optical focus to be adjusted during camera assembly or installation according to the required working distance.
Q: How can I select the right focal length for my camera?
A: Focal length should be selected according to sensor size, working distance, and required field of view. TOWIN’s Focal Length Calculator can help estimate a suitable focal length for a specific camera setup.
Choosing an ultra-wide M12 lens requires balancing FOV, sensor compatibility, distortion, mechanical dimensions, and the required working distance. A 3.1mm lens such as this model is appropriate when broad coverage is more important than maintaining low geometric distortion.
For a deeper understanding of these parameters, see TOWIN’s Lens Selection Guide, FOV Calculator, and Distortion Guide.
For customized M12 optical requirements, including different focal lengths, FOV ranges, sensor formats, or mechanical dimensions, contact TOWIN’s optical engineering team for OEM/ODM lens development support.
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