

25mm 3MP M12 low distortion lens with <0.5% distortion, 14° FOV, F2.5 aperture and IR correction for compact imaging systems.
CCL132525MP Low distortion CCTV 1/3″ 25mm 11° F2.5 M12 mount lens with HD 5MP long focal length
| IMAGE FORMAT | 1/3″ |
| FOCAL LENGTH | 25mm |
| F.O.V. | 14°(D) |
| 11°(H) | |
| 8°(V) | |
| RESOLUTION | 3 MP |
| OPTICAL DISTORTION | <-0.5% |
| APERTURE | F2.5 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| M.O.D. | 0.2m |
| TTL | 26 |
| IR | Corrected |
This 25mm 3MP M12 Low Distortion Lens is a compact fixed focal lens designed for imaging systems that require a narrow field of view, controlled geometric distortion, and infrared-corrected performance. Featuring a 1/3″ image format, 3MP resolution, 14° diagonal FOV, and <0.5% optical distortion, it provides focused imaging for applications where accurate target positioning and image geometry are important. Designed for long-distance surveillance, traffic monitoring, and precision vision applications, this IR corrected M12 lens combines a 25mm focal length with a compact M12X0.5 mounting interface.
The F2.5 fixed aperture provides a stable optical configuration, while manual focus allows installers or system integrators to adjust focus according to the actual working distance. With a 0.2m minimum object distance and 26mm TTL, the lens can be integrated into compact camera modules where space and optical performance both need to be considered.
The 25mm focal length and 14° diagonal FOV make this lens suitable for monitoring a relatively narrow area at greater distances. Instead of capturing a broad scene, the optical design concentrates image coverage on a defined target zone. This makes it suitable for compact surveillance cameras, roadside monitoring equipment, and fixed-position observation systems.
The <0.5% optical distortion is particularly useful when maintaining consistent target geometry is important during image analysis.
For traffic monitoring systems, a narrow FOV can help focus the camera on a specific lane, vehicle approach area, or controlled observation zone. The 25mm focal length provides a more concentrated view than short-focal-length M12 lenses, while the low-distortion design helps maintain the shape and relative position of objects within the image.
The IR-corrected optical configuration can also support traffic cameras operating with supplemental infrared illumination.
For broader traffic imaging requirements, explore TOWIN’s Smart Traffic solutions.
The combination of 3MP resolution and <0.5% distortion makes this lens suitable for compact machine vision systems that require controlled image geometry without using a larger C-mount optical assembly. Potential applications include target positioning, component inspection, dimensional observation, and localized automated inspection.
For additional industrial imaging configurations, see TOWIN’s Machine Vision solutions.
The IR corrected optical design makes this lens appropriate for security systems that may switch between visible-light and near-infrared illumination. The fixed 25mm focal length can be used when the camera installation has a predetermined monitoring zone and does not require optical zoom.
This makes it a practical option for compact security camera modules, embedded monitoring devices, and specialized imaging equipment.
For narrow-FOV imaging, geometric accuracy can be important because objects near the image edges may otherwise appear displaced or deformed. With optical distortion specified below 0.5%, this lens provides a controlled imaging geometry that can benefit machine vision, traffic monitoring, target positioning, and analytical imaging systems.
For a deeper explanation of distortion and its effect on imaging, visit the TOWIN Distortion Guide.
A 25mm M12 lens is generally appropriate when the application needs a narrow viewing angle rather than wide scene coverage. When selecting this lens, engineers should evaluate the camera sensor format, target distance, required field of view, mounting space, illumination wavelength, and required image resolution.
This model supports a 1/3″ image format and provides 14° diagonal, 11° horizontal, and 8° vertical FOV. For projects requiring a different coverage area, the TOWIN FOV Calculator can help estimate the relationship between sensor size, focal length, working distance, and field of view.
You can also review the Sensor Guide when matching the lens to a camera sensor.
Q: What is the main advantage of this 25mm M12 lens?
A: Its combination of a 25mm focal length, 3MP resolution, narrow 14° diagonal FOV, and <0.5% optical distortion makes it suitable for focused imaging where controlled image geometry is important.
Q: Is this a low distortion M12 lens?
A: Yes. The specified optical distortion is less than 0.5%, making low distortion one of the key characteristics of this 25mm M12 lens.
Q: Is the lens IR corrected?
A: Yes. The lens is IR corrected and is designed for imaging systems that may operate with visible and near-infrared illumination.
Q: What is the field of view of this 25mm lens?
A: The lens provides a 14° diagonal FOV, 11° horizontal FOV, and 8° vertical FOV on the specified 1/3″ image format.
Q: What type of camera can use this lens?
A: The M12X0.5 mount makes it suitable for compatible compact camera modules and embedded imaging systems using a 1/3″ sensor format.
Q: Does this lens support autofocus?
A: No. The lens uses manual focus, allowing the optical focus to be adjusted during system installation and integration.
Q: Is this a zoom lens?
A: No. It is a fixed focal lens with a 25mm focal length and does not provide optical zoom.
Q: Can TOWIN customize a similar low-distortion M12 lens?
A: TOWIN can evaluate customized optical requirements such as focal length, sensor format, FOV, distortion, mount, and infrared imaging requirements. Contact TOWIN through the Contact page to discuss a specific project.
For more compact M12 optical options, explore the M12 Lenses product range.
For selecting an appropriate focal length, sensor format, and field of view, see the TOWIN Lens Selection Guide.
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