

4.0mm 5MP Wide Angle lens for 1/1.8″ sensors, featuring 140° FOV, F1.0 aperture, M16x0.5 mount, and 0.2m M.O.D. for ultra-wide imaging.
S04011811010 is 4.0mm High resolution Wide Angle lens, 1/1.8″ Low F-number M16x0.5 mount lens, F1.0 5-Megapixel Low Light Sensitive Lens.
| IMAGE FORMAT | 1/1.8″ |
| FOCAL LENGTH | 4.0mm |
| F.O.V. | 140°(D) |
| 110°(H) | |
| 68°(V) | |
| RESOLUTION | 5 Megapixel |
| DISTORTION | <-63% |
| APERTURE | F1.0 |
| MOUNT | M16x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 46.8mm |
| B.F.L. | 6.16mm |
| STRUCTURE | 10G |
This 4.0mm 5MP Wide Angle lens is designed for 1/1.8″ image sensors and delivers an ultra-wide 140° diagonal field of view with a fast F1.0 aperture. Its M16x0.5 mount, 0.2m minimum object distance, and fixed iris make it suitable for compact wide-area imaging systems requiring high resolution and strong low-light performance.
This 4.0mm 5MP Wide Angle lens is developed for imaging systems that need to capture a very broad scene while maintaining the resolution required by a 1/1.8″ image sensor. Its 140° diagonal FOV allows a single camera to cover a large viewing area, reducing blind spots in applications where wide-angle coverage is a primary requirement.
The combination of 5MP resolution and F1.0 aperture makes this lens particularly useful for indoor and dimly illuminated environments. The fast aperture helps the camera collect more available light, while the high-resolution optical configuration preserves useful image detail across a wide scene.
For compact monitoring equipment, the M16x0.5 mount provides a practical mechanical interface for customized camera assemblies. The 0.2m minimum object distance also makes the lens suitable for relatively close-range observation, such as monitoring equipment, entrances, compact work areas, and enclosed spaces.
Unlike a conventional low-distortion machine vision lens, this Wide Angle configuration intentionally uses strong negative distortion to achieve its extremely wide field of view. It is therefore better suited to wide-area situational imaging, panoramic monitoring, and visual awareness than precision dimensional measurement.
For systems where geometric accuracy and low distortion are more important than maximum viewing angle, see the Low Distortion Lens range and review the Distortion Guide before selecting the optical configuration.
When matching this lens with a camera sensor, the Sensor Guide can help verify sensor format and image-circle compatibility. You can also use the FOV Calculator to evaluate field-of-view requirements for a specific camera setup.
For application-specific optical requirements, including mechanical dimensions, sensor matching, or customized lens configurations, contact Towin for further evaluation.
Designed for ultra-wide panoramic monitoring, low-light imaging, robotics vision, and close-range wide-area observation applications.
Q: What type of lens is this 4.0mm lens?
A: It is a fixed focal length ultra-wide Wide Angle lens designed for 1/1.8″ image sensors, with a 140° diagonal field of view and 5MP resolution.
Q: What is the field of view of the 4.0mm Wide Angle lens?
A: The specified field of view is 140° diagonal, 110° horizontal, and 68° vertical.
Q: Why does this Wide Angle lens have -63% distortion?
A: The strong negative distortion is a characteristic of the Wide Angle optical design. It allows the lens to achieve an extremely wide field of view within a relatively compact optical configuration.
Q: What is the advantage of the F1.0 aperture?
A: F1.0 provides a large optical aperture that allows more light to reach the image sensor. This can improve image brightness and help maintain usable imaging performance in low-light environments.
Q: Is this lens suitable for precision machine vision inspection?
A: It can be used for machine vision systems focused on broad scene awareness, but its high Wide Angle distortion makes it unsuitable for applications where accurate dimensional measurement or geometric image reproduction is the primary requirement.
Q: What does the 0.2m M.O.D. mean?
A: M.O.D. is the closest focus distance. A 0.2m M.O.D. enables relatively close-range wide-area imaging.
Q: What camera sensor is compatible with this lens?
A: This lens supports 1/1.8″ image format and 5MP resolution. Full camera design requires verification of sensor active area, image circle, mechanical interface and back focal specs.
Q: Can this M16x0.5 Wide Angle lens be customized?
A: Custom optical and mechanical configurations can be assessed based on target sensor, FOV, housing dimensions, aperture and application requirements. Contact Towin to discuss a project-specific configuration.
Download Specs Sheet
Online contact
| SENSOR | |
|---|---|
| E.F.L. | |
| H. F.O.V. | |
| RESOLUTION | |
| FNo. | |
| Max Dist. | |
| FEATURE | |
| MOUNT | |
| IRIS | |
| T.T.L.(mm) | |
| MARK |
Sending...
