

5.5mm 2MP M12 low distortion lens with 68° FOV, 1% distortion, F2.8 aperture and 850±10nm pass filter for compact imaging.
CCL127055MPF Low distortion 5.5mm 1/2.7″ 55° M12 mount lens HD 2MP for PC web camera
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 5.5mm |
| F.O.V. | 68°(D) |
| 55°(H) | |
| 48°(V) | |
| RESOLUTION | 2Megapixel |
| DISTORTION | 1% |
| APERTURE | F2.8 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| R.I. | 70% |
| B.F.L. | 0.8mm |
| TTL | 10.62 |
| LENS COMPOMEMT | 4P+IR cut but 850±10nm pass filter |
This 5.5mm M12 lens is designed for compact imaging systems that require low distortion, 850nm wavelength filtering, and stable 2MP image performance. With a 1/2.7″ image format, 68° diagonal FOV, 55° horizontal FOV, and 48° vertical FOV, it provides a balanced viewing angle for controlled-area imaging without the extreme perspective of ultra-wide optics. The lens features a fixed F2.8 aperture and manual focus configuration, while its 1% distortion helps maintain consistent image geometry for applications where accurate visual representation is important.
Its 4P optical construction incorporates an 850±10nm pass filter, making it suitable for camera systems specifically designed for 850nm wavelength imaging. With an M12×0.5 mount, 10.62mm TTL, and 0.8mm B.F.L., the compact optical configuration supports integration into embedded camera modules. Designed for 850nm imaging, compact machine vision, smart monitoring, and wavelength-specific embedded camera applications, this fixed focal M12 lens provides a practical combination of optical control, compact integration, and dedicated wavelength filtering.
The defining feature of this lens is its 850±10nm pass filter, which is designed to transmit a narrow wavelength range centered around 850nm. This makes the lens suitable for imaging systems that use 850nm illumination or require wavelength-specific optical filtering.
Potential applications include:
Because an 850nm pass filter is not the same as an IR-corrected optical design, system designers should evaluate wavelength performance according to the complete camera and illumination configuration. TOWIN’s Optical Design resources provide additional information for optical system development.
With specified 1% distortion, this M12 lens can be considered for compact vision systems where geometric consistency is important. The 55° horizontal FOV provides a controlled viewing area that can be useful for inspection and monitoring tasks without the strong perspective associated with ultra-wide lenses.
Potential compatible devices include:
For systems where distortion is an important selection factor, TOWIN’s Distortion Guide can help explain how lens distortion influences image geometry.
The M12×0.5 mount, 10.62mm TTL, and 0.8mm B.F.L. provide a compact optical configuration for embedded camera assemblies. The 5.5mm focal length offers a moderate field of view, making it suitable for devices that need controlled image coverage rather than panoramic imaging.
It can be integrated into:
Engineers can refer to TOWIN’s M12 Lens portfolio when comparing this lens with other M12 optical configurations.
The 68° diagonal FOV and 55° horizontal FOV create a relatively controlled viewing perspective. This configuration can be useful for monitoring defined areas, equipment zones, machine interiors, or other scenes where excessive wide-angle distortion is undesirable.
The 1% distortion specification can also help maintain more consistent object shapes across the image compared with higher-distortion wide-angle configurations.
This lens combines four important characteristics in a compact optical package: 5.5mm fixed focal length, 1% distortion, 850±10nm pass filtering, and M12 mounting. It is particularly suitable for engineers developing compact imaging systems that operate with 850nm illumination and need controlled image geometry.
Compared with a conventional M12 camera lens, the integrated 850nm pass filter gives this model a more specialized role in wavelength-specific imaging systems. Meanwhile, the 55° horizontal FOV provides a balanced viewing angle for controlled-area applications.
For projects requiring a different focal length, sensor format, FOV, distortion level, wavelength filter, or mechanical configuration, Contact TOWIN for optical solution support.
Q: What type of lens is this 5.5mm lens?
A: This is a 5.5mm fixed focal M12 lens designed for 1/2.7″ sensors, with 2MP resolution, 1% distortion, and an integrated 850±10nm pass filter.
Q: What is the field of view of the 5.5mm M12 lens?
A: The lens provides a 68° diagonal FOV, 55° horizontal FOV, and 48° vertical FOV, providing controlled scene coverage for compact imaging systems.
Q: Is this a low distortion M12 lens?
A: Yes. The specified distortion is 1%, making it suitable for applications where controlled image geometry is required.
Q: What is the purpose of the 850nm pass filter?
A: The 850±10nm pass filter is designed to transmit light around the 850nm wavelength, making the lens suitable for camera systems using 850nm illumination or wavelength-specific imaging.
Q: Is the 850nm filter the same as an IR corrected lens?
A: No. An 850nm pass filter controls wavelength transmission, while IR correction refers to optical correction across infrared wavelengths. The supplied specifications identify an 850nm pass filter but do not specify IR correction.
Q: What mount does this lens use?
A: The lens uses an M12×0.5 mount, making it compatible with camera systems designed for this M12 threaded interface.
Q: What is the focal configuration of this lens?
A: The lens has a 5.5mm fixed focal length and a fixed F2.8 aperture. Focus is specified as manual.
Q: Can TOWIN customize an M12 lens for 850nm imaging?
A: TOWIN can evaluate customized requirements involving focal length, sensor format, FOV, distortion, wavelength filtering, and mechanical dimensions. Contact TOWIN to discuss a specific optical project.
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