

1/2“ 3.1mm 6MP M12 lens with 160° wide FOV, F1.8 aperture and IR cut filter for CCTV, robotics and embedded vision.
CCL12031MPF is a 3.1mm M12 wide-angle CCTV lens. It is for 1/2″ sensors Aptina MT9M001, MT9T001 with large aperture F1.8 for low light IP camera, security video surveillance and Car recorder.
| IMAGE FORMAT | 1/2“ |
| FOCAL LENGTH | 3.1mm |
| F.O.V. | 160° |
| 120° | |
| 90° | |
| RESOLUTION | 6 MP |
| OPTICAL DISTORTION | <-39% |
| APERTURE | F1.8 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 23.8mm |
| LENS COMPONENT | 6G+IR cut filter |
This 3.1mm M12 wide-angle CCTV lens is designed for wide-angle imaging applications that require extensive scene coverage in a compact camera system. With a 1/2″ image format, 6MP resolution, F1.8 aperture, and a field of view of up to 160°, it captures a broad area while maintaining strong image brightness and detail. The M12x0.5 mount enables easy integration into compact board cameras and embedded vision devices. With optical distortion below -39%, this lens provides an ultra-wide perspective suitable for surveillance and environmental awareness applications. Designed for wide-angle security and embedded vision applications, it is a practical optical solution for CCTV cameras, robotics, drones, smart devices, and other space-constrained imaging systems.
For more M12 and board-mount lens options, explore TOWIN’s M12 / S-Mount Lenses, including wide-angle and fisheye lens solutions. TOWIN’s M12 lens portfolio supports different focal lengths, sensor formats, resolutions, and fields of view for embedded imaging applications.
Ultra-Wide Field of View
With a maximum F.O.V. of 160°, this 3.1mm lens can capture a very broad scene, making it suitable for applications where wide-area coverage is more important than narrow-angle detail.
6MP High-Resolution Imaging
The 6MP optical design supports detailed image capture for modern embedded cameras and surveillance systems, providing a good balance between resolution and wide-angle coverage.
Bright F1.8 Aperture
The F1.8 fixed aperture allows a relatively high amount of light to reach the image sensor, helping maintain image brightness in indoor, shaded, or other challenging lighting conditions.
Compact M12x0.5 Mount
The standard M12x0.5 mount is suitable for compact board cameras and embedded camera modules where installation space is limited.
Multi-FOV Configuration
The lens provides multiple F.O.V. options of 160°, 120°, and 90°, allowing system designers to select an appropriate viewing angle according to the camera structure and coverage requirements.
Wide-Angle Optical Design
The optical design combines a short 3.1mm focal length with a large field of view, making the lens suitable for applications that require strong peripheral scene coverage.
Integrated IR Cut Filter
The built-in IR cut filter helps block unwanted infrared wavelengths during visible-light imaging, supporting more natural color reproduction for standard daytime or indoor camera applications. This configuration should not be confused with an IR-corrected lens intended for infrared night vision.
CCTV & Security Cameras
The ultra-wide field of view makes this M12 lens suitable for security cameras that need to monitor large indoor or outdoor areas with fewer blind spots.
Smart Security Systems
Its compact M12 mount and wide viewing angle make it suitable for embedded security cameras, smart monitoring devices, and compact intelligent imaging systems.
Robotics Vision
The wide F.O.V. can help robots perceive a larger surrounding area for navigation, environmental awareness, and object detection. For broader robotics lens requirements, see TOWIN’s Robotics Vision Lens Solutions, which cover M12 and C-Mount optical solutions.
Drone & UAV Imaging
The compact M12 form factor and ultra-wide perspective are suitable for lightweight drone camera systems where wide environmental coverage is required. TOWIN also provides M12 lens solutions specifically for drone imaging and compact AI camera applications.
Wide-Area Monitoring
The 160° F.O.V. option can be used for applications requiring broad scene observation, such as room monitoring, entrance monitoring, vehicle surroundings, and compact embedded cameras.
Embedded AI Cameras
The combination of a compact M12 mount, 6MP resolution, and wide field of view makes this lens suitable for embedded AI vision devices where camera size and environmental awareness are important.
For applications requiring more precise imaging geometry, lower distortion, or measurement accuracy, TOWIN also provides other optical configurations that can be selected according to sensor size, focal length, FOV, and distortion requirements.
Focal Length and FOV
The 3.1mm focal length provides an ultra-wide viewing angle, with available F.O.V. configurations of 160°, 120°, and 90°. A wider FOV is useful for covering larger scenes, while narrower configurations can provide a more controlled perspective.
Learn more about how focal length affects field of view in TOWIN’s Knowledge Center, which covers focal length, FOV, sensor size, distortion, MTF, and lens selection.
Distortion Consideration
The optical distortion is specified as below -39%, which indicates a strong wide-angle/fisheye optical characteristic. This is advantageous when maximum scene coverage is required, but applications requiring accurate geometric measurement, dimensional inspection, or precise object positioning may require a low-distortion lens instead.
Sensor Compatibility
The lens is designed for a 1/2″ image format and supports 6MP resolution. Matching the lens image format with the camera sensor is important to avoid image circle mismatch, vignetting, or loss of usable image area.
Aperture and Lighting
The fixed F1.8 aperture provides a relatively bright optical system, making this lens suitable for applications where maintaining sufficient image brightness is important.
IR Cut Filter
The integrated IR cut filter is intended for visible-light imaging and helps reduce unwanted infrared transmission. For applications requiring 850nm or 940nm infrared imaging, an IR-corrected lens should be considered instead.
Q: What applications is this 3.1mm M12 wide-angle CCTV lens suitable for?
A: This lens is particularly suitable for CCTV surveillance, smart security, robotics vision, drone imaging, embedded AI cameras, and other wide-area imaging applications that require a very broad field of view.
Q: What is the maximum field of view of this M12 wide-angle CCTV lens?
A: The lens provides F.O.V. options of 160°, 120°, and 90°, with 160° offering the widest scene coverage. The appropriate configuration should be selected according to the camera sensor and application requirements.
Q: Is this lens a low-distortion M12 lens?
A: No. The specified optical distortion is below -39%, indicating a strong ultra-wide-angle or fisheye optical characteristic. It is designed primarily for wide scene coverage rather than precision geometric imaging.
Q: What sensor size is this lens designed for?
A: This lens targets a 1/2″ image format and delivers 6MP resolution. Match your camera sensor to the lens image format to achieve proper image coverage.
Q: Is the F1.8 aperture suitable for low-light applications?
A: The F1.8 aperture provides a relatively bright optical system and can help maintain image brightness in lower-light environments. However, actual low-light performance also depends on sensor sensitivity, exposure settings, illumination, and image processing.
Q: Does this lens support infrared night vision?
A: This configuration includes an IR cut filter, which is intended to block unwanted infrared wavelengths for visible-light imaging. It is therefore not the same as an IR-corrected lens designed for 850nm or 940nm night-vision applications.
Q: What type of camera uses an M12x0.5 lens?
A: M12x0.5 lenses are commonly used in compact board cameras, CCTV cameras, embedded vision systems, robotics cameras, automotive cameras, drones, and other space-constrained imaging devices. TOWIN offers a broad range of M12/S-Mount lens configurations.
Explore M12 / S‑Mount Lenses for more compact wide‑angle optical options.
See TOWIN’s Industrial Lens Solutions for embedded and industrial applications.
Explore Robotics Vision Lens Solutions for robotics, navigation, and AI vision systems.
Visit the Lens Basics Knowledge Center for technical guidance on focal length, FOV, sensor matching, distortion, and lens selection.
TOWIN also provides Smart Traffic Lens Solutions for traffic and wide‑area monitoring applications.
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