

4mm 8MP M12 Wide Angle lens with up to 159° FOV, F1.8 aperture, M12x0.5 mount and 9G+IRCF structure for panoramic, AI and embedded vision.
S04011712018F-159° Wide Angle Lens, 8MP High Magnification S-Mount Lenses F1.8 low light lens with IRCF for surveillance or automotive applications.
| IMAGE FORMAT | Max Φ10.2mm |
| FOCAL LENGTH | 4.0mm |
| F.O.V.(1/1.73″) (OX08B40) | 159° (D=9.25) |
| 120° (H=8.06) | |
| 65° (V=4.54) | |
| F.O.V.(1/1.8″) (IMX678) | 150° (D=8.86) |
| 113° (H=7.71) | |
| 62° (V=4.35) | |
| RESOLUTION | 8 Megapixel |
| DISTORTION | <-79% |
| APERTURE | F1.8 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| T.T.L. | 30.99mm |
| STRUCTURE | 9G+IRCF |
This 4mm 8MP M12 wide angle lens is designed for compact vision systems that require an exceptionally broad field of view. Supporting up to 159° diagonal FOV on the 1/1.73″ OX08B40 sensor and 150° diagonal FOV on the 1/1.8″ Sony IMX678, it combines F1.8 aperture, M12x0.5 mounting, and a 9G+IRCF optical structure for wide-area imaging, smart cameras, robotics, and embedded vision applications.
This 4mm M12 Wide Angle lens is designed for imaging systems where maximum scene coverage is more important than geometric correction. Its extremely wide FOV allows a compact camera to capture a large surrounding area, making it particularly useful for panoramic observation, environmental awareness, and wide-area monitoring.
With up to 159° diagonal FOV on the OX08B40 sensor, this lens can capture a very broad perspective from a single camera position. It is suitable for applications that need to monitor a large area while maintaining a compact optical assembly.
Typical applications include:
For projects involving multiple camera perspectives and field-of-view calculations, TOWIN provides an online FOV Calculator.
Designed for AI vision applications, this 8MP M12 lens provides a combination of high resolution and very wide scene coverage. It can be used where AI algorithms need to observe people, objects, or activities across a broad image area rather than perform precision geometric measurement.
Compatible equipment can include:
The 8MP resolution provides sufficient image detail for object detection and scene analysis while the wide FOV helps reduce blind areas.
The extremely wide perspective is useful for mobile platforms that require broad environmental visibility. A single compact camera can observe a large portion of the surrounding environment, supporting obstacle awareness, navigation assistance, and general scene perception.
Potential devices include:
For broader system requirements, explore TOWIN’s Robotics Vision Solutions.
The 4mm focal length and strong Wide Angle characteristics make this lens suitable for security systems where coverage of a large area is the primary requirement. It can be integrated into compact cameras used for room monitoring, entrances, corridors, equipment areas, and other indoor environments.
Potential applications include:
More application-specific optical solutions can be found in TOWIN’s Smart Security Solutions.
The M12x0.5 mount makes this lens suitable for embedded camera designs where installation space is limited. Its fixed focal and fixed iris configuration also provides a straightforward optical architecture for production camera modules.
It can be considered for:
Because the specified distortion is below -79%, this lens should be selected for wide-angle coverage and scene awareness, rather than applications requiring accurate dimensional measurement or low-distortion image processing.
Q: What type of lens is this?
A: This is a 4mm fixed focal M12 wide angle lens designed to provide extremely broad scene coverage. It can deliver up to 159° diagonal FOV with the 1/1.73″ OX08B40 sensor.
Q: Which sensors are compatible with this M12 lens?
A: The lens supports a maximum image circle of Φ10.2mm and is specified with both the 1/1.73″ OX08B40 and 1/1.8″ Sony IMX678 sensors. The FOV is 159° diagonal on the OX08B40 and 150° diagonal on the IMX678.
Q: Is this a low distortion M12 lens?
A: No. With distortion below -79%, this product is better categorized as a Wide Angle lens and wide angle lens. Its optical design prioritizes extremely wide coverage rather than geometric distortion correction.
Q: What does the 9G+IRCF structure mean?
A: 9G indicates a nine-element optical construction, while IRCF refers to an IR Cut Filter. The optical structure supports the wide-angle design, and the IR cut filter helps control infrared transmission in visible-light camera systems.
Q: What is the advantage of the F1.8 aperture?
A: F1.8 provides relatively strong light-gathering capability, helping the camera maintain useful image brightness in indoor scenes and other environments where illumination may be limited.
Q: Does this lens support zoom or variable focal length?
A: No. This is a fixed focal lens with a 4.0mm focal length and fixed optical configuration. It is intended for camera systems with a predefined field-of-view requirement.
Q: Can TOWIN customize this M12 Wide Angle lens?
A: Yes. TOWIN can develop customized optical and mechanical configurations according to sensor format, focal length, FOV, distortion, aperture, mount, and application requirements. For project-specific requirements, contact TOWIN through the Contact page.
Choosing a suitable Wide Angle or wide angle lens requires consideration of sensor size, focal length, image circle, field of view, and distortion. TOWIN’s Lens Basics provides foundational information for understanding these optical parameters.
For sensor compatibility and lens selection, refer to the Sensor Guide and Lens Selection Guide.
You can also explore TOWIN’s complete M12 Lenses range for additional compact lens solutions.
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