

5.95mm 5MP M12 low distortion wide-angle lens for 1/1.8″ sensors, featuring <0.9% distortion, 60° horizontal FOV, F5.6 aperture, and >76% relative illumination.
S05911806056F is Low distortion 5-Megapixel lens for machine vision, 1/1.8″ CCTV lens with Built-In Filter, fixed aperture F5.6, M12/S-Mount, 78°(D) F.O.V..
| IMAGE FORMAT | 1/1.8″ |
| FOCAL LENGTH | 5.95mm |
| F.O.V. | 78°(D) |
| 60°(H) | |
| 40°(V) | |
| RESOLUTION | 5MP |
| TV DISTORTION | <0.9% |
| APERTURE | F5.6 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.1m |
| R.I. | >76% |
| T.T.L. | 23.2mm |
| STRUCTURE | 3G2P+IRCF |
This 5.95mm 5MP M12 low distortion lens is designed for compact vision systems that require controlled geometric distortion, stable image coverage, and consistent illumination across the image field. With a 78° diagonal FOV, 60° horizontal FOV, and TV distortion below 0.9%, it provides wide-angle imaging without the pronounced deformation of fisheye optics.
Featuring an M12×0.5 mount, F5.6 fixed aperture, 0.1m minimum object distance, and 3G2P+IRCF optical construction, this lens is suitable for compact machine vision cameras, embedded vision modules, smart monitoring equipment, and space-constrained imaging systems using 1/1.8″ sensors.
This 5.95mm M12 low distortion lens is designed for vision systems that need a practical balance between viewing coverage, image geometry, and optical consistency. Its 60° horizontal FOV provides a moderately wide viewing area, while the TV distortion below 0.9% helps keep straight edges and object proportions relatively stable throughout the image.
A key characteristic of this lens is its relative illumination above 76%. This makes it useful for imaging setups where brightness consistency from the center toward the edge of the image is important. Combined with its 1/1.8″ image format and 5MP resolution, the lens can be considered for compact inspection cameras, embedded visual monitoring modules, robotic cameras, and automated equipment where consistent image quality across the field is more important than achieving an extremely wide FOV.
The 0.1m minimum object distance also gives the lens flexibility for near-field imaging. It can be positioned relatively close to components, equipment interfaces, or monitored objects while maintaining a compact camera configuration.
The F5.6 fixed aperture provides a stable optical configuration without an adjustable iris mechanism, which can simplify integration into fixed-focus embedded camera modules. When selecting a lens for a particular sensor and working distance, engineers can refer to Towin’s Lens Selection Guide for guidance on focal length, sensor format, FOV, and application requirements.
For engineers evaluating the required coverage, Towin’s FOV Calculator can help estimate the relationship between focal length and sensor size; For more detailed sensor considerations, the Sensor Guide provides additional information for camera and lens matching.
For industrial inspection and automated visual perception systems, this lens can be integrated into Machine Vision applications where moderate wide-angle coverage and controlled optical performance are required.
Designed for consistent low-distortion imaging in compact machine vision, embedded vision, and close-range monitoring applications.
Q: What type of lens is the 5.95mm M12 lens?
A: It is a fixed focal, low distortion wide-angle M12 lens designed for 1/1.8″ sensors and 5MP imaging applications.
Q: What is the distortion specification of this lens?
A: The specified TV distortion is below 0.9%, providing controlled geometric performance for wide-angle imaging applications.
Q: What is the field of view of the 5.95mm lens?
A: On a 1/1.8″ sensor, the lens provides a 78° diagonal FOV, 60° horizontal FOV, and 40° vertical FOV.
Q: What does the relative illumination specification of >76% mean?
A: Relative illumination describes how much brightness is maintained toward the edge of the image compared with the center. A value above 76% indicates relatively consistent illumination across the image field.
Q: What applications are suitable for this 5MP M12 lens?
A: Typical applications include compact machine vision, embedded vision, robotics cameras, industrial monitoring, close-range imaging, and customized OEM camera modules.
Q: What is the minimum object distance?
A: The minimum object distance is 0.1m, making the lens suitable for close-range imaging where the camera may need to be positioned near the target.
Q: Does the 3G2P+IRCF construction mean that this is an IR corrected lens?
A: No. IRCF generally refers to an infrared-cut filter. It should not be interpreted as optical IR correction, so this product should not be classified as an IR Corrected Lens based solely on this specification.
Q: How can I determine whether 5.95mm is the right focal length for my application?
A: Focal length selection depends on sensor size, working distance, target dimensions, and required FOV. Towin’s Focal Length Calculator can help estimate the focal length needed for a specific camera setup.
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