

3.5mm 12.5MP M12 wide angle lens with 100° FOV, < -1% distortion, F2.5 aperture, and 0.2m M.O.D. for high-resolution compact vision systems.
S03512308725F is Low-Distortion M12-mount 12.5-Megapixel lens with Built-In Filter, F2.5 aperture Wide-angle CCTV lens, Suitable for security Surveillance.
| IMAGE FORMAT | Max Φ7.7mm |
| FOCAL LENGTH | 3.5mm |
| F.O.V. 1/2.3″ | 100°(D) |
| 87°(H) | |
| 71°(V) | |
| F.O.V. 1/3.2″ | 83°(D) |
| 71°(H) | |
| 55°(V) | |
| RESOLUTION | 12.5 MP |
| DISTORTION | <-1% |
| APERTURE | F2.5 |
| MOUNT | M12X0.5 |
| M.O.D. | 0.2m |
| M.B.F.L. | 4.03mm |
| STRUCTURE | 6G1P+IRCF |
This 3.5mm 12.5MP M12 lens is designed for high-resolution compact imaging systems that require a wide field of view with controlled optical distortion. With up to 100° diagonal FOV on a 1/2.3″ sensor and distortion below -1%, it combines broad scene coverage with accurate image geometry.
Featuring a 12.5MP resolution, F2.5 aperture, M12X0.5 mount, and 0.2m minimum object distance, this M12 wide angle lens is suitable for high-resolution embedded cameras, compact machine vision systems, robotics vision modules, and other space-constrained imaging applications.
This 3.5mm 12.5MP M12 lens is designed for high-resolution vision systems where a compact optical package needs to capture a relatively large scene without introducing significant geometric distortion. The combination of 12.5MP resolution and < -1% distortion makes it particularly suitable for applications where image detail and spatial accuracy need to be considered together.
With a 100° diagonal and 87° horizontal FOV on a 1/2.3″ sensor, the lens can capture a broad area from a relatively compact camera position. This makes it suitable for embedded vision devices that need wider coverage than conventional narrow-angle lenses while avoiding the strong deformation associated with fisheye optics.
For compact machine vision systems, the 12.5MP resolution provides additional image detail for object inspection, dimensional observation, surface analysis, and AI-assisted visual processing. The 0.2m M.O.D. also supports short-distance imaging, making the lens useful when the camera must be installed relatively close to the target.
The lens is also well suited to robotics vision where a robot-mounted camera needs to observe a broad workspace while retaining controlled image geometry. The wide FOV can help increase the visible working area, while the low distortion characteristic provides a more predictable image for computer vision algorithms.
Another important advantage is its support for different sensor formats. On a 1/3.2″ sensor, the FOV changes to 83° diagonal, 71° horizontal, and 55° vertical. This provides system designers with additional flexibility when developing different camera configurations around the same optical platform.
Designed for high-resolution embedded vision, compact machine vision, robotics perception, and wide-area short-distance imaging applications.
For additional compact lens configurations, explore M12 Lenses. Engineers developing embedded M12 camera systems can also review the dedicated M12 Lens solution.
When selecting the appropriate sensor and lens combination, the Sensor Guide can help compare sensor formats and image coverage. The Lens Selection Guide provides additional guidance on matching focal length, sensor size, FOV, and application requirements.
For applications where image geometry is important, the Distortion Guide provides useful background on lens distortion and its impact on captured images.
Engineers can also use the FOV Calculator to estimate image coverage for different sensor and working-distance configurations. For focal-length selection, the Focal Length Calculator can be used during preliminary optical evaluation.
Q: What type of lens is this 3.5mm M12 lens?
A: It is a fixed focal, wide angle, low distortion M12 lens designed for high-resolution compact imaging systems. It provides up to 12.5MP resolution and less than -1% distortion.
Q: What is the field of view on a 1/2.3″ sensor?
A: With a 1/2.3″ sensor, the lens provides a 100° diagonal FOV, 87° horizontal FOV, and 71° vertical FOV.
Q: What is the field of view on a 1/3.2″ sensor?
A: With a 1/3.2″ sensor, the specified FOV is 83° diagonal, 71° horizontal, and 55° vertical.
Q: Is this 3.5mm M12 lens a fisheye lens?
A: No. Although it provides a 100° diagonal FOV on a 1/2.3″ sensor, the specified distortion is below -1%. It is therefore better classified as a wide angle low distortion lens rather than a fisheye lens.
Q: What is the resolution of this M12 lens?
A: The lens is specified with a resolution of 12.5MP, making it suitable for high-resolution compact camera systems and selected machine vision applications.
Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, or 200mm. This supports relatively close-range imaging while maintaining a wide field of view.
Q: Can this lens be used with both 1/2.3″ and 1/3.2″ sensors?
A: The provided specifications include FOV values for both 1/2.3″ and 1/3.2″ sensor formats. Final compatibility should be confirmed against the complete camera module, sensor active area, image circle, and mechanical design.
Q: Can this lens be used for machine vision applications?
A: Yes. Its 12.5MP resolution, wide FOV, and < -1% distortion make it suitable for selected compact machine vision applications, particularly where broad scene coverage and detailed image capture are required.
For customized requirements involving sensor compatibility, FOV, focal length, distortion, or mechanical dimensions, contact Towin for optical engineering and OEM/ODM support.
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| RESOLUTION | |
| Max Dist. | |
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| IRIS | |
| T.T.L.(mm) | |
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