

4.2mm 5MP M12 IR-corrected CCTV lens with 95° FOV, F2.0 aperture and close-focus capability for security and machine vision.
CCL125042MP is a 4.2mm M12 IR-corrected CCTV lens. It is for 1/2.5″ 5 Megapixel sensors Aptina MT9P031, IMX317 with F2.0 for low light IP camera, IR corrected for Day Night security video surveillance.
| IMAGE FORMAT | 1/2.5″ |
| FOCAL LENGTH | 4.2mm |
| F.O.V. | 95°(D) |
| 77°(H) | |
| 56°(V) | |
| RESOLUTION | 5Megapixel |
| APERTURE | F2.0 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| B.F.L. | 7.98mm |
| M.O.D. | 0.1m |
| IR | Corrected |
This 4.2mm M12 IR-corrected CCTV lens is designed for compact imaging systems that require a wide field of view, high-resolution image capture, and stable performance across visible and near-infrared wavelengths. With a 1/2.5″ image format, 5MP resolution, 95° diagonal F.O.V., and F2.0 aperture, the lens provides broad scene coverage while maintaining detailed image quality. The M12x0.5 mount makes it suitable for compact board cameras and embedded vision devices, while the 0.1m minimum object distance supports close-range imaging applications. Its IR-corrected optical design helps maintain consistent focus when switching between visible and infrared illumination. Designed for IR-sensitive surveillance and embedded vision applications, this lens is suitable for security cameras, machine vision systems, robotics, smart traffic, and other compact imaging platforms.
For more compact board-mount options, explore TOWIN’s M12 / S-Mount Lenses, including wide-angle, IR-corrected, and application-specific lens solutions.
Wide-Angle 95° F.O.V.
The 95° diagonal field of view provides broad scene coverage while maintaining a more controlled perspective than extreme fisheye lenses, making it suitable for surveillance and machine vision applications.
5MP High-Resolution Performance
The 5MP optical design supports detailed image capture and is suitable for camera systems requiring clear object and environmental information.
IR-Corrected Optical Design
The IR-corrected configuration helps reduce focus shifts between visible and near-infrared wavelengths, supporting applications that operate with both daytime and infrared illumination.
F2.0 Aperture
The F2.0 aperture provides a good balance between light transmission, image brightness, and optical performance for indoor and outdoor imaging systems.
Compact M12x0.5 Mount
The M12x0.5 interface is well suited to compact board cameras and embedded camera modules where optical size and mechanical integration are important considerations.
Close-Focus Capability
With a minimum object distance of only 0.1m, this lens can capture subjects at relatively close distances, making it suitable for compact inspection, monitoring, and embedded imaging applications.
Manual Fixed-Focus Configuration
The manual focus design allows the lens to be adjusted during camera assembly or system integration according to the required working distance.
CCTV & Security Cameras
The combination of 95° wide-angle coverage and IR correction makes this lens suitable for security cameras that require reliable daytime and infrared imaging.
Machine Vision Systems
The 5MP resolution, controlled wide-angle perspective, and 0.1m M.O.D. make this lens suitable for compact machine vision systems where objects need to be captured at relatively short working distances.
For more industrial imaging options, explore TOWIN’s Machine Vision Lens Solutions.
Smart Traffic & Transportation Cameras
The wide field of view can help capture vehicles, road environments, and surrounding areas in intelligent transportation systems. The IR-corrected design can also be beneficial for systems using infrared illumination.
Explore additional Smart Traffic Lens Solutions for traffic monitoring and intelligent transportation applications.
Robotics Vision
The 95° FOV provides broad environmental coverage for robotic perception, navigation, and object detection, while the compact M12 mount supports space-constrained robotic camera modules.
For more options, see TOWIN’s Robotics Vision Lens Solutions.
Smart Security & AI Cameras
The compact form factor, 5MP resolution, and IR-corrected optical design make this lens suitable for embedded AI cameras, smart monitoring devices, and intelligent security systems.
Near-Infrared Imaging Applications
The IR-corrected design is particularly useful in camera systems that use near-infrared illumination. It helps maintain image focus when the camera operates across visible and near-infrared wavelengths.
Focal Length and Field of View
The 4.2mm focal length provides a 95° diagonal, 77° horizontal, and 56° vertical field of view. This combination offers broad scene coverage without the extremely distorted perspective associated with many ultra-wide fisheye lenses.
For a better understanding of focal length and FOV, visit TOWIN’s Lens Basics Knowledge Center.
Sensor Compatibility
The lens is designed for a 1/2.5″ image format and supports 5MP resolution. Matching the camera sensor size with the lens image format is important for avoiding image-circle limitations and ensuring effective use of the sensor area.
Learn more about sensor and lens matching through TOWIN’s Lens Selection Guide.
IR-Corrected Performance
Unlike a standard visible-light lens, this IR-corrected lens is designed to maintain more consistent optical focus when infrared wavelengths are introduced. This makes it a suitable choice for cameras that operate with IR illumination or require day/night imaging capability.
Working Distance
The 0.1m minimum object distance provides useful close-range imaging capability. When selecting the lens, the actual working distance, object size, sensor dimensions, and required FOV should be considered together.
Aperture
The fixed F2.0 aperture provides a balance between light-gathering capability and optical performance. Actual image brightness will also depend on sensor sensitivity, exposure settings, and illumination conditions.
Q: What applications is this 4.2mm M12 IR-corrected CCTV lens suitable for?
A: This lens is suitable for CCTV surveillance, smart security, machine vision, robotics, smart traffic, AI cameras, and other compact imaging systems requiring a wide field of view and IR-corrected performance.
Q: What is the field of view of this M12 lens?
A: The lens provides a 95° diagonal FOV, 77° horizontal FOV, and 56° vertical FOV. This provides broad scene coverage while maintaining a more controlled perspective than extreme fisheye optics.
Q: What sensor size is compatible with this lens?
A: This lens is designed for a 1/2.5″ image format and supports 5MP resolution. The camera sensor should be checked against the lens image format during system design to ensure proper image coverage.
Q: Is this lens suitable for night vision cameras?
A: Yes. Its IR-corrected optical design makes it suitable for cameras using near-infrared illumination, particularly day/night surveillance systems. The actual night-vision performance also depends on the camera sensor and IR illumination source.
Q: What is the minimum object distance of this lens?
A: The M.O.D. is 0.1m, allowing the lens to focus on relatively close objects. The practical working distance should still be evaluated according to the required object size and field of view.
Q: Does this lens have adjustable focus or zoom?
A: The lens uses manual focus and a fixed zoom configuration. Manual focusing allows the optical focus to be adjusted during camera assembly or system integration, while the focal length remains fixed at 4.2mm.
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