

4.3mm 2MP M8 Low Distortion Lens with 73° FOV, F2.0 aperture and compact design for security and embedded vision.
M804312706520F is a 4.3mm M8 Low Distortion Lens. It is for 1/2.7″ 2 megapixel sensors, such as OV2710, OV2735, AR0230. It is used in face recognition with low CRA and short T.T.L.7.8mm.
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 4.3mm |
| F.O.V. | 73°(D) |
| 65°(H) | |
| 40°(V) | |
| RESOLUTION | 2MP |
| DISTORTION | 0.5% |
| APERTURE | F2.0 |
| MOUNT | M8X0.25 |
| IRIS | Fixed |
| M.O.D. | 0.1m |
| B.F.L. | 1.45mm |
| CONSTRUCTION | 4P+IRF |
This 4.3mm M8 Low Distortion Lens is designed for compact imaging systems that require a balanced combination of wide-angle coverage, low distortion, and reliable image performance. With a 1/2.7″ image format, 2MP resolution, 73° diagonal F.O.V., and F2.0 aperture, it provides broad scene coverage while maintaining a controlled image perspective. The 0.5% optical distortion is particularly suitable for applications where accurate image geometry is more important than extreme wide-angle coverage. Its compact M8x0.25 mount, 1.45mm B.F.L., and 0.1m minimum object distance allow integration into small camera modules with limited installation space. Designed for compact low-distortion vision and monitoring applications, this lens is suitable for embedded cameras, smart security devices, robotics, industrial monitoring, and other space-constrained imaging systems.
For more compact optical solutions, explore TOWIN’s M8/M7/M6/M5/M3.5 Small Mount Lenses and Other Mount Lenses.
Low 0.5% Optical Distortion
The 0.5% distortion specification provides a relatively accurate representation of the captured scene, making this lens more suitable for applications requiring controlled image geometry and reliable object positioning.
73° Wide-Angle Coverage
The 73° diagonal FOV provides useful scene coverage without introducing the extreme perspective associated with ultra-wide or fisheye lenses.
Compact M8x0.25 Mount
The M8x0.25 mount is designed for highly compact camera modules where a smaller optical and mechanical footprint is required.
2MP Resolution
The 2MP optical configuration provides a practical balance between image detail, system cost, and compact camera integration for general monitoring and embedded vision applications.
F2.0 Aperture
The F2.0 aperture provides balanced light transmission for indoor monitoring, embedded cameras, and other general imaging applications.
Close-Focus Capability
With a 0.1m M.O.D., the M8 Low Distortion Lens can capture relatively close subjects, making it suitable for compact monitoring and short-distance imaging applications.
Compact Optical Construction
The 4P+IRF construction provides a compact optical configuration suitable for small camera modules, while the 1.45mm B.F.L. supports integration into space-constrained optical assemblies.
Smart Security Cameras
The combination of low distortion and 73° FOV makes this lens suitable for compact security cameras that need a relatively broad viewing area while maintaining controlled image geometry.
For more security-oriented optical solutions, explore TOWIN’s Smart Security Solutions.
Embedded Vision Systems
The compact M8 mount and short B.F.L. make this lens suitable for embedded cameras integrated into small devices, sensors, and intelligent monitoring equipment.
Robotics Vision
The controlled 0.5% distortion can help robotic vision systems maintain more accurate image geometry for object detection and environmental perception, while the 73° FOV provides useful surrounding coverage.
Explore TOWIN’s Robotics Vision Solutions.
Industrial Monitoring
The lens can be used for compact industrial monitoring systems where moderate wide-angle coverage and controlled distortion are required.
For broader industrial imaging requirements, see TOWIN’s Machine Vision Solutions.
Compact AI Cameras
The small M8 optical interface makes this lens suitable for compact AI-enabled camera modules where available installation space is limited.
Short-Range Imaging
The 0.1m M.O.D. allows the lens to focus on relatively close objects, making it useful for equipment monitoring, compact inspection, and short-distance embedded imaging.
Focal Length and Field of View
The 4.3mm focal length provides a 73° diagonal, 65° horizontal, and 40° vertical field of view. This configuration offers a useful balance between scene coverage and controlled perspective.
For more information about focal length and field of view, visit TOWIN’s Lens Basics or use the FOV Calculator.
Low Distortion Performance
With optical distortion specified at only 0.5%, this lens is well suited to applications where maintaining relatively accurate image geometry is important. It can be advantageous for object positioning, monitoring, and certain machine vision tasks compared with strongly distorted wide-angle lenses.
For more information, see TOWIN’s Distortion Guide.
Sensor Compatibility
The lens is designed for a 1/2.7″ image format and supports 2MP resolution. Matching the camera sensor to the lens image format helps ensure appropriate image coverage and avoid vignetting.
See the Sensor Guide for guidance on sensor and lens compatibility.
Compact M8 Optical Interface
The M8x0.25 mount is smaller than commonly used M12 configurations, making it particularly suitable for miniature camera modules and applications with strict mechanical space limitations.
For other small-format optical interfaces, explore TOWIN’s Small Mount Lenses.
Short Back Focal Length
The 1.45mm B.F.L. supports compact camera architecture, but the sensor position and mechanical structure should be carefully matched during integration.
Aperture and Illumination
The fixed F2.0 aperture provides a practical balance between light transmission and optical performance. Actual image brightness will also depend on sensor sensitivity, exposure settings, illumination, and image processing.
Q: What applications is this 4.3mm M8 Low Distortion Lens suitable for?
A: This lens is suitable for compact security cameras, embedded vision systems, robotics vision, industrial monitoring, AI cameras, and other applications requiring wide-angle coverage with low optical distortion.
Q: What is the field of view of this lens?
A: The lens provides a 73° diagonal FOV, 65° horizontal FOV, and 40° vertical FOV. This provides broad coverage while maintaining a relatively controlled perspective.
Q: Is this a low-distortion lens?
A: Yes. The specified optical distortion is only 0.5%, making this lens a suitable option for applications where controlled image geometry and accurate scene representation are important.
Q: What sensor size is compatible with this lens?
A: The lens is designed for a 1/2.7″ image format and supports 2MP resolution. The sensor and lens image format should be matched during camera design to ensure complete image coverage.
Q: Why choose an M8 mount instead of an M12 mount?
A: The M8x0.25 mount provides a smaller mechanical footprint than an M12 mount, making it suitable for miniature camera modules and applications where optical installation space is particularly limited.
Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.1m, allowing the lens to focus on relatively close subjects. The actual working distance should be evaluated together with the required object size and field of view.
Q: Can TOWIN customize this M8 lens for a specific camera?
A: Yes. TOWIN supports OEM and ODM optical development for compact camera projects. Requirements such as focal length, FOV, sensor format, distortion, mechanical dimensions, and optical performance can be evaluated according to the application. Contact TOWIN for engineering support.
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