

12mm 6MP M12 low distortion fixed focal lens for 1/2″ sensors, featuring <0.5% TV distortion, F3.5 aperture, 36° FOV, and M12×0.5 mount.
S12012002935F is Low-distortion 1/2″ M12/S-mount CCTV lens with Built-In IR Filter, 6-Megapixel High-resolution, 36° diagonal FOV, F3.5 Aperture.
| IMAGE FORMAT | 1/2″ |
| FOCAL LENGTH | 12mm |
| F.O.V. | 36°(D) |
| 29°(H) | |
| 22°(V) | |
| RESOLUTION | 6MP |
| TV DISTORTION | <0.5% |
| APERTURE | F3.5 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 22.7mm |
| CONSTRUCTION | 6G+IRCF |
This 12mm 6MP M12 low distortion lens is designed for compact imaging systems that require a focused field of view and accurate image geometry. With a 1/2″ image format, 29° horizontal FOV, and TV distortion below 0.5%, it provides stable imaging for defined target areas without the excessive scene coverage of wide-angle optics.
Featuring an M12×0.5 mount, F3.5 fixed aperture, 0.2m minimum object distance, and 6G+IRCF optical construction, this fixed focal lens is well suited to compact machine vision, embedded inspection, smart monitoring, and other space-constrained imaging applications.
This 12mm M12 low distortion lens is designed for vision systems where the camera needs to concentrate on a specific target rather than capture an extremely wide scene. Its 29° horizontal FOV provides a relatively focused viewing area, making it suitable for applications where the target occupies a defined portion of the image and unnecessary background coverage is undesirable.
The combination of a 12mm focal length and less than 0.5% TV distortion makes this lens particularly useful for compact inspection systems, component recognition, equipment monitoring, and fixed-position visual analysis. Compared with shorter M12 focal lengths, the 12mm design can provide more concentrated target framing at a given installation distance.
The lens is also suitable for embedded machine vision modules installed above production equipment, smart monitoring devices observing specific zones, and compact cameras used for object recognition. The 0.2m minimum object distance gives system designers flexibility when the camera is installed relatively close to the monitored subject.
The F3.5 fixed aperture provides a stable optical configuration for controlled environments where illumination can be managed through dedicated lighting. This can be useful in inspection equipment where repeatable lighting conditions are established around the camera.
For engineers determining whether a 12mm focal length provides the required target coverage, Towin’s Lens Selection Guide can help compare focal length, sensor format, working distance, and field of view. The FOV Calculator can also be used to estimate the coverage available at a specific working distance.
For compact embedded applications, engineers can explore Towin’s M12 Lens Solutions. For applications involving precision visual inspection, the Machine Vision Solutions section provides additional information about industrial imaging configurations.
When a project requires a different focal length, sensor format, optical performance, or mechanical configuration, contact Towin for lens selection and OEM/ODM customization support.
Designed for focused, low-distortion imaging of defined target areas in compact machine vision and embedded inspection systems.
Q: What type of lens is this 12mm M12 lens?
A: It is a 12mm fixed focal M12 lens designed for 1/2″ sensors, with 6MP resolution and TV distortion below 0.5%. It is particularly suitable for focused, low-distortion imaging.
Q: Is this 12mm M12 lens a wide-angle lens?
A: No. Its 36° diagonal, 29° horizontal, and 22° vertical FOV provide a relatively focused viewing angle. It is better categorized as a low-distortion fixed focal lens rather than a wide-angle M12 lens.
Q: What sensor size does this lens support?
A: The specified image format is 1/2″, with a 6MP resolution rating.
Q: What is the field of view of the 12mm lens?
A: The diagonal FOV is 36°, horizontal FOV is 29°, and vertical FOV is 22°.
Q: How much distortion does this M12 lens have?
A: The specified TV distortion is below 0.5%, making it suitable for applications where controlled image geometry is important.
Q: What is the minimum object distance?
A: The minimum object distance is 0.2m. This allows the lens to be used for relatively close targets when the camera is correctly focused and installed.
Q: What applications are suitable for this 12mm lens?
A: Typical applications include compact machine vision, component inspection, equipment monitoring, embedded recognition, smart vision devices, and fixed-position imaging of defined target areas.
Q: How do I determine whether 12mm is the correct focal length for my camera?
A: The required focal length depends on sensor size, working distance, target dimensions, and desired field of view. Towin’s Focal Length Calculator can help estimate the required focal length for a specific imaging setup.
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