

12mm F1.6 5MP M12 low distortion lens for 1/2.7″ sensors, featuring <0.1% distortion and IR correction for precision machine vision and industrial imaging.
S12012702816 is Low-distortion CCTV 5-Megapixel IR-corrected lens with 31° diagonal FOV, 1/2.7″ M12 Mount F1.6 aperture for security surveillance.
| IMAGE FORMAT | Max 7.0, 1/2.7″ |
| FOCAL LENGTH | 12mm |
| F.O.V. (1/2.7″) | 31°(D) |
| 28°(H) | |
| 16°(V) | |
| DISTORTION | <-0.1% |
| RESOLUTION | 5 MegaPixel |
| APERTURE | F1.6 |
| MOUNT | M12X0.5 |
| T.T.L. | 22.27mm |
| STRUCTURE | Without filter |
| IR | Corrected |
This 12mm F1.6 M12 low distortion lens is designed for 1/2.7″ image sensors and delivers 5-megapixel imaging with less than 0.1% distortion. With IR correction, a fixed 12mm focal length, and a compact M12 × 0.5 mount, it is well suited for machine vision and industrial imaging systems requiring stable image geometry and consistent performance across different lighting conditions.
The combination of a 1/2.7″ sensor format, 12mm focal length, and very low distortion makes this lens suitable for applications where accurate image geometry is important. Engineers can also refer to the Sensor Guide when matching this lens with a camera sensor.
The most distinctive feature of this model is its less than 0.1% distortion, making it particularly appropriate for applications where lens-induced geometric deformation needs to be minimized. For more information about distortion and its impact on machine vision, see TOWIN’s Distortion Guide.
The 12mm focal length and <0.1% distortion provide a controlled optical configuration for machine vision systems that need consistent object geometry across the image.
Low distortion is particularly valuable when the captured image is used for measurement, positioning, dimensional inspection, alignment, or other vision tasks where excessive geometric deformation can affect image analysis.
The 5MP resolution provides sufficient image detail for many industrial inspection systems while the F1.6 aperture helps maintain image brightness in controlled production environments.
For inspection applications where straight edges, component dimensions, or relative object positions need to be analyzed, low geometric distortion can simplify downstream image processing.
With distortion specified below 0.1%, this lens can be considered for compact measurement-oriented vision systems using 1/2.7″ sensors.
Engineers can use the FOV Calculator to evaluate whether the 31° diagonal field of view provides sufficient coverage for the required working distance and target size.
This lens is specified as IR Corrected, allowing it to be considered for imaging systems where infrared wavelengths influence the optical configuration.
IR correction can be valuable when maintaining consistent focus and image performance across visible and infrared wavelengths is important. The lens is specified as Without Filter, so the final camera system can be configured according to the required optical filtering arrangement.
Designed for precision machine vision, dimensional inspection, and IR-enabled industrial imaging applications.
For broader application information, explore TOWIN’s Machine Vision Solutions or browse the complete range of M12 Lenses.
Q: What sensor size is this 12mm M12 lens designed for?
A: The lens is specified for a 1/2.7″ image sensor and supports up to the stated Max 7.0 image format specification.
Q: What is the focal length of this M12 lens?
A: The focal length is 12mm, making it a fixed focal length lens suitable for applications requiring a stable viewing configuration.
Q: How low is the distortion of this lens?
A: The specified distortion is < -0.1%, making this a low distortion lens for applications where image geometry needs to be tightly controlled.
Q: Is this lens IR corrected?
A: Yes. The specification explicitly states IR Corrected, so this model can be classified as an IR Corrected Lens.
Q: Does the lens include an IR filter?
A: No. The structure is specified as Without Filter. IR correction and an IR filter are different optical characteristics; this lens provides IR correction without a built-in filter according to the supplied specification.
Q: What is the field of view of the 12mm lens?
A: On a 1/2.7″ sensor, the specified field of view is 31° diagonal, 28° horizontal, and 16° vertical.
Q: What is the aperture of this lens?
A: The lens has an F1.6 aperture, providing relatively strong light-gathering capability for industrial imaging applications.
Q: What type of mount does this lens use?
A: It uses an M12 × 0.5 mount, making it part of TOWIN’s compact M12 lens range.
When choosing a lens for precision machine vision, focal length, sensor format, field of view, distortion, aperture, and spectral requirements should be evaluated together. This model combines a 12mm focal length, 1/2.7″ sensor format, F1.6 aperture, and <0.1% distortion, providing a configuration focused on controlled image geometry.
For applications requiring a specific working distance and target coverage, the Focal Length Calculator can help engineers evaluate focal-length requirements. TOWIN’s Lens Selection Guide also provides additional guidance for selecting an industrial lens based on sensor and application requirements.
If your application requires a specific sensor, working distance, field of view, distortion level, or IR imaging configuration, contact TOWIN Lens for lens selection and OEM/ODM optical development.
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