

1/2.7″ 3.3mm 2-Megapixel M12 wide-angle CCTV lens with 125° FOV, F2.0 aperture and close-focus capability for security and embedded vision.
S03312710520 is a 3.3mm M12 wide-angle CCTV lens. It is for 1/2.7″ OV2710, OV2735, AR0230, 1/2.8” IMX322, IMX290, 1/2.9″ GC2053, AR0330, OV4689. And it is a 2 Megapixel HD lens with large aperture F2.0 for IP security surveillance camera.
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 3.3mm |
| F.O.V. (OV2710) | 125° |
| 105° | |
| 56° | |
| RESOLUTION | 2 MP |
| DISTORTION | 48% |
| APERTURE | F2.0 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.1m |
| T.T.L. | 22.23mm |
| STRUCTURE | 1G4P |
This 3.3mm M12 wide-angle CCTV lens is designed for compact camera systems that require a broad field of view and reliable 2MP imaging performance. Featuring a 1/2.7″ image format, 125° diagonal F.O.V., 105° horizontal F.O.V., and 56° vertical F.O.V., the lens provides extensive scene coverage for applications where capturing a larger surrounding area is important. Its F2.0 fixed aperture supports stable light transmission, while the M12x0.5 mount allows straightforward integration with compact board cameras and embedded imaging modules. With a 0.1m minimum object distance and 22.23mm total track length, the lens can also support relatively close-range monitoring applications. The 48% distortion reflects its wide-angle optical design, prioritizing broad coverage rather than precision geometric reproduction. Designed for wide-angle security and embedded vision applications, this lens is suitable for CCTV, smart security, robotics, and compact monitoring systems.
For more compact wide-angle options, explore TOWIN’s M12 Lenses and Wide Angle Lenses.
125° Ultra-Wide Field of View
The 125° diagonal FOV provides broad scene coverage, helping reduce blind spots in security and monitoring applications where a conventional lens may not cover the required area.
2MP Imaging Performance
The 2MP optical configuration provides practical image detail for general-purpose surveillance, embedded cameras, smart devices, and environmental monitoring.
Compact M12x0.5 Mount
The M12x0.5 interface makes the lens suitable for compact board cameras and embedded imaging modules where standardized miniature mounting is required.
F2.0 Fixed Aperture
The F2.0 aperture provides a balanced level of light transmission for general indoor and outdoor imaging applications.
Close-Focus Capability
With a 0.1m M.O.D., the lens can capture subjects at relatively short distances, supporting close-range monitoring and compact camera applications.
Wide-Angle Optical Configuration
The 3.3mm focal length is optimized for broad environmental coverage, making it useful for applications where scene awareness is more important than magnification.
Simple 1G4P Optical Construction
The 1G4P optical structure provides a compact configuration for cost-conscious embedded imaging systems while supporting the specified 2MP performance.
CCTV & Security Cameras
The 125° diagonal field of view makes this lens suitable for security cameras that need to cover rooms, entrances, corridors, retail areas, and other relatively large spaces.
Explore TOWIN’s Megapixel CCTV Lenses for additional compact surveillance optics.
Smart Security Systems
The combination of wide-angle coverage, M12 mounting, and close-focus capability makes this lens suitable for compact smart security cameras and intelligent monitoring devices.
For application-specific solutions, see TOWIN’s Smart Security Solutions.
Robotics Vision
The wide FOV can provide robots with a broader view of their surroundings for environmental awareness, navigation, and basic object detection.
Explore TOWIN’s Robotics Vision Solutions.
Embedded Vision Devices
The compact M12 format makes this M12 wide-angle CCTV lens suitable for embedded camera modules, smart devices, monitoring equipment, and other space-constrained imaging systems.
Indoor Wide-Area Monitoring
The 105° horizontal FOV can help capture a broad area within indoor environments, making the M12 wide-angle CCTV lens useful for room monitoring, equipment observation, and occupancy-awareness applications.
Focal Length and Field of View
The 3.3mm focal length provides a 125° diagonal, 105° horizontal, and 56° vertical FOV when used with the specified OV2710 configuration. This makes it an ultra-wide-angle option for applications requiring broad scene coverage.
For evaluating focal length and field of view, use TOWIN’s FOV Calculator and review the Lens Basics.
Distortion Consideration
The specified distortion is 48%, indicating a strongly wide-angle optical configuration. This level of distortion is appropriate when maximum scene coverage is the priority, but it is not intended for applications requiring accurate geometric measurement or highly linear image reproduction.
For more information about lens distortion, visit TOWIN’s Distortion Guide.
Sensor Compatibility
The lens is designed for a 1/2.7″ image format and is specified for 2MP imaging. The OV2710 FOV figures should be evaluated with the actual sensor used in the final camera because FOV can vary with sensor dimensions and active imaging area.
See the Sensor Guide for guidance on sensor and lens matching.
Aperture and Lighting
The fixed F2.0 aperture provides balanced light transmission for general imaging. Actual low-light performance depends on the camera sensor, exposure settings, illumination, and image-processing system.
Minimum Object Distance
The 0.1m M.O.D. allows the lens to focus on relatively close subjects. This can be useful for compact monitoring devices and short-range embedded vision applications.
Mechanical Integration
The 22.23mm T.T.L. should be considered when designing the camera housing. The M12x0.5 mounting interface allows integration with compatible board cameras and camera modules.
For broader lens selection guidance, visit TOWIN’s Lens Selection Guide.
Q: What applications is this 3.3mm M12 lens suitable for?
A: This lens is suitable for CCTV surveillance, smart security cameras, embedded vision devices, robotics vision, indoor monitoring, and other applications requiring a very wide field of view.
Q: What is the field of view of this lens?
A: With the specified OV2710 configuration, the lens provides a 125° diagonal FOV, 105° horizontal FOV, and 56° vertical FOV, providing broad environmental coverage.
Q: Is this a low-distortion M12 lens?
A: No. The specified distortion is 48%, which is characteristic of an ultra-wide-angle optical design. The lens prioritizes broad scene coverage rather than precise geometric reproduction.
Q: What sensor size is this lens designed for?
A: The lens is designed for a 1/2.7″ image format and is specified for 2MP imaging. The actual FOV should be verified against the active sensor dimensions of the selected camera.
Q: Why would I choose a 3.3mm lens for CCTV?
A: A 3.3mm focal length provides a much wider viewing angle than longer focal lengths, making it useful for rooms, entrances, retail spaces, and other areas where reducing blind spots is important.
Q: Can this lens focus on nearby objects?
A: Yes. The specified minimum object distance is 0.1m, allowing relatively close subjects to be captured when the lens is properly focused.
Q: Can TOWIN customize this M12 lens?
A: Yes. TOWIN supports OEM and ODM optical development for customized imaging projects. Focal length, FOV, sensor format, distortion, mechanical dimensions, and other optical requirements can be evaluated according to the application. Contact TOWIN for engineering support.
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