

4.3mm 8MP M12 low distortion wide-angle lens for 1/1.8″ sensors, featuring 94° FOV, < -0.8% distortion, F2.8 aperture, and M12×0.5 mount.
S04311808228F is Wide-angle low distortion CCTV HD lens with Built-In Filter, 1/1.8″ M12/S-Mount 94° 8-Megapixel F2.8 security surveillance lens.
| IMAGE FORMAT | 1/1.8“ |
| FOCAL LENGTH | 4.3mm |
| F.O.V. | 94°(D) |
| 82°(H) | |
| 66°(V) | |
| RESOLUTION | 8 MP |
| DISTORTION | <-0.8% |
| APERTURE | F2.8 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 25.4mm |
| CONSTRUCTION | 9G+IRCF |
This 4.3mm 8MP M12 low distortion lens is designed for compact vision systems that require wide-angle coverage with controlled image geometry. With a 94° diagonal FOV, 82° horizontal FOV, and distortion below -0.8%, it provides broad scene coverage while reducing image deformation.
Featuring an M12×0.5 mount, F2.8 fixed aperture, 0.2m minimum object distance, and 9G+IRCF optical construction, this lens is well suited to compact machine vision cameras, embedded AI vision modules, robotics systems, and smart imaging equipment built around 1/1.8″ sensors.
This 4.3mm M12 machine vision lens is designed for compact imaging systems where wide-area coverage and controlled distortion need to be balanced within a limited mechanical space. Its 82° horizontal FOV allows a single camera to capture a relatively broad scene, while the distortion below -0.8% helps preserve more natural object geometry than highly distorted wide-angle or fisheye optics.
The lens is particularly suitable for compact machine vision inspection, robotic workspace monitoring, embedded AI vision, smart equipment monitoring, and industrial camera modules using 1/1.8″ sensors. The 8MP resolution provides sufficient image detail for applications involving object recognition, positioning, visual classification, and general inspection.
For robotic vision, the wide FOV can help increase the visible workspace around the camera, making it useful for robot-mounted or fixed-position cameras observing work areas, components, or operating zones. For compact inspection equipment, the 0.2m M.O.D. supports relatively close-range imaging where the camera must be positioned near the target.
The 25.4mm TTL and M12×0.5 mounting interface also make this lens practical for space-constrained OEM camera designs. Engineers can use Towin’s Lens Selection Guide when matching the lens to the sensor, working distance, and required field of view.
For applications where camera placement and coverage need to be calculated before lens selection, Towin’s FOV Calculator can help engineers evaluate the relationship between sensor size, focal length, and field of view.
This lens can also be integrated into Machine Vision and Robotics Vision systems where compact optics, wide scene coverage, and controlled distortion are required.
Designed for compact low-distortion machine vision, robotics, and embedded wide-angle imaging applications.
Q: What type of lens is this 4.3mm M12 lens?
A: It is a fixed focal, low distortion wide-angle M12 lens designed for 1/1.8″ sensors and supporting up to 8MP resolution.
Q: What is the distortion specification of this lens?
A: The specified distortion is below -0.8%, providing controlled geometric performance for wide-angle imaging applications.
Q: Is the 4.3mm M12 lens a fisheye lens?
A: No. Although it provides a wide 94° diagonal FOV, its distortion is below -0.8%, so it is designed as a low distortion wide-angle lens rather than a conventional fisheye lens.
Q: What is the field of view of this 4.3mm lens?
A: When used with a 1/1.8″ sensor, the lens provides a 94° diagonal FOV, 82° horizontal FOV, and 66° vertical FOV.
Q: What sensor format does this lens support?
A: The specified image format is 1/1.8″. The lens supports up to 8MP resolution according to the supplied product specifications.
Q: What is the minimum object distance of this lens?
A: The minimum object distance is 0.2m, making the lens suitable for relatively close-range imaging as well as general wide-area vision applications.
Q: Does the 9G+IRCF construction make this an IR corrected lens?
A: No. IRCF generally refers to an infrared-cut filter. It should not be interpreted as infrared optical correction, so this product should not be classified as an IR Corrected Lens based only on the supplied construction specification.
Q: How can I determine whether 4.3mm is the correct focal length for my camera?
A: Focal length selection depends on the sensor format, working distance, target dimensions, and required FOV. Towin’s Focal Length Calculator can help estimate the required focal length for a specific imaging setup.
Download Specs Sheet
Online contact
| SENSOR | |
|---|---|
| E.F.L. | |
| H. F.O.V. | |
| RESOLUTION | |
| Max Dist. | |
| FNo. | |
| FEATURE | |
| MOUNT | |
| IRIS | |
| T.T.L.(mm) | |
| MARK |
Sending...
