Wide Angle Lens – S04323012018F

139° Wide-angle 2/3″ 8MP IR-corrected M12 lens, F1.8 aperture, manual focus for surveillance or imaging applications.

4.3mm 8MP M12 Low Distortion Wide Angle Lens

This 4.3mm 8MP M12 low distortion wide angle lens is designed for compact vision systems that require both broad scene coverage and controlled image distortion. With a 139° diagonal FOV, less than 14% TV distortion, F1.8 aperture, and 7G+IRCF optical structure, it provides a balanced solution for machine vision, robotics, smart cameras, and embedded imaging systems.

Product Core Highlights

• 139° Ultra-Wide FOV – Captures a broad scene from a compact camera position while maintaining useful image coverage.
• <14% TV Distortion – Provides substantially better geometric control than typical fisheye designs, making it more suitable for vision systems requiring controlled image geometry.
• 8MP High Resolution – Supports detailed image acquisition for AI vision, machine vision, and intelligent camera systems.
• F1.8 Wide Aperture – Provides strong light-gathering capability for indoor and variable-light imaging environments.
• Compact M12x0.5 Mount – Enables integration into space-constrained camera modules and embedded vision equipment.

Wide Angle Lens Applications

This 4.3mm M12 lens is designed for applications that need a very wide field of view without the extreme distortion associated with conventional fisheye lenses. The combination of 139° diagonal FOV, 8MP resolution, and less than 14% TV distortion makes it suitable for compact imaging systems where both scene coverage and image usability are important.

Wide-Area Machine Vision

Designed for machine vision applications that require broad image coverage in a limited installation space, this lens can help capture large objects or work areas without relying on an extremely short focal length.

It can be considered for:

• Compact machine vision cameras
• Automated inspection equipment
• Robotic inspection systems
• Work-area monitoring cameras
• Embedded industrial cameras

The controlled distortion is particularly useful when image processing needs a more predictable relationship between the captured scene and the actual object geometry.

For additional machine vision optical solutions, explore TOWIN’s Machine Vision Solutions.

Robotics Vision & Environmental Perception

The 139° diagonal FOV provides a broad perspective for robotic systems that need to observe nearby surroundings. Compared with a strongly distorted fisheye design, the lower distortion can make captured images easier to process for object recognition and scene interpretation.

Potential devices include:

• Mobile robots
• Autonomous robotic platforms
• AMR systems
• Robotic inspection cameras
• Compact navigation cameras

See TOWIN’s Robotics Vision Solutions for additional lens solutions for robotic imaging.

Smart Cameras & AI Vision

The combination of 8MP resolution and wide-angle coverage makes this lens suitable for AI-enabled cameras that need to monitor a relatively large area from a fixed position.

Typical applications include:

• AI edge cameras
• Smart monitoring cameras
• Object detection systems
• People counting cameras
• Intelligent scene analysis
• Embedded AI vision modules

The lower distortion compared with conventional fisheye lenses can also simplify downstream image processing where strong geometric warping would otherwise reduce usable image areas.

Compact Inspection & Monitoring

The M12x0.5 mount and 4.3mm focal length make this lens suitable for compact camera assemblies where installation space is restricted. Manual focus allows the optical system to be adjusted during assembly to achieve the required imaging performance.

It can be integrated into:

• Compact inspection cameras
• Equipment monitoring systems
• Industrial embedded cameras
• Smart factory vision devices
• Machine-mounted cameras

For selecting the appropriate focal length according to sensor and object distance, use TOWIN’s Focal Length Calculator.

Wide-Angle Security Imaging

This lens can also be used in security and monitoring systems where broad coverage is required but excessive fisheye distortion is undesirable. The 120° horizontal FOV provides extensive scene coverage while the controlled TV distortion helps maintain a more usable image geometry.

Suitable devices include:

• Smart security cameras
• Indoor monitoring cameras
• Wide-angle IP camera modules
• Access-area monitoring cameras
• AI security terminals

For more application-specific solutions, see TOWIN’s Smart Security Solutions.

Frequently Asked Questions

Q: What type of lens is this?

A: This is a 4.3mm fixed focal M12 low distortion wide angle lens designed for the 2/3″ image format. It provides a 139° diagonal field of view with less than 14% TV distortion.

Q: Is this lens suitable for machine vision?

A: Yes. Its 8MP resolution, wide FOV, controlled distortion, and compact M12 mount make it suitable for selected machine vision and embedded inspection applications where broad scene coverage is required.

Q: How does the <14% distortion benefit the application?

A: Less than 14% TV distortion provides better geometric control than typical fisheye lenses. This can make the image more suitable for object recognition, visual inspection, and image-processing applications where excessive edge warping is undesirable.

Q: What sensor size does this M12 lens support?

A: This model is specified for a 2/3″ image format and provides a 139° diagonal, 120° horizontal, and 67° vertical field of view under the specified configuration.

Q: Is this a fisheye lens?

A: No. Although it provides an extremely wide field of view, its less than 14% TV distortion makes it more appropriate to classify as a low distortion wide angle lens rather than a conventional fisheye lens.

Q: Does this lens support manual focus?

A: Yes. The lens uses manual focus, allowing the focus position to be adjusted during camera assembly according to the required object distance and imaging conditions.

Q: Can TOWIN customize this M12 low distortion lens?

A: Yes. TOWIN can provide customized optical and mechanical solutions based on sensor format, focal length, FOV, distortion, aperture, mount, and application requirements. Contact TOWIN through the Contact page for project-specific requirements.

Technical Resources

Selecting a wide angle lens requires balancing sensor size, focal length, field of view, distortion, and image resolution. TOWIN’s Lens Basics provides useful background information on these optical parameters.

For selecting lenses according to sensor format and application requirements, refer to the Sensor Guide and Lens Selection Guide.

You can also explore the complete M12 Lenses range for additional compact lens options.

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