Wide Angle Lens – S03612709018

S03612709018 is 1/2.7″ 3.6mm High-Quality wide – angle lens IR – corrected, Low F-number S-Mount Lens (F1.8), 3-Megapixel resolution CCTV lens.

3.6mm 3MP M12 IR Corrected Wide Angle Lens

This 3.6mm 3MP M12 IR corrected wide angle lens is designed for compact imaging systems that require broad scene coverage, close-range imaging, and stable optical performance across visible and near-infrared imaging conditions. Designed for a 1/2.7″ image format, the lens provides a 113° diagonal, 90° horizontal, and 68° vertical field of view.

Its 3.6mm focal length provides wide-area coverage while the F1.8 aperture supports efficient light collection in indoor and moderately low-light environments. The M12×0.5 mount allows straightforward integration into compact camera modules, embedded vision equipment, and space-constrained optical assemblies.

A key advantage of this model is its 0.1m minimum object distance, which makes it particularly suitable for close-range monitoring, compact equipment imaging, robotics, and embedded vision applications. The specified IR corrected design further supports applications where the camera may operate under different illumination or infrared-assisted imaging conditions.

For additional compact optical solutions, explore TOWIN’s M12 Lenses range.

M12 Wide Angle Lens Core Highlights

• 113° Wide Field of View — Provides broad scene coverage from a compact 3.6mm focal length, making it suitable for close-range and area-monitoring applications.
• 3MP Resolution — Offers a practical balance between image detail and compact camera integration for monitoring and embedded vision.
• 0.1m Minimum Object Distance — Supports very close-range imaging where the camera needs to observe nearby objects or equipment.
• IR Corrected Optical Design — Helps maintain more consistent focus behavior when visible and near-infrared illumination are both part of the imaging system.
• M12×0.5 Compact Mount — Facilitates integration into small camera modules, embedded devices, robotics systems, and industrial imaging equipment.

M12 Wide Angle Lens Applications

Core Application Scenes

The combination of a 3.6mm focal length, 113° diagonal FOV, 0.1m minimum object distance, and IR corrected optical design makes this lens particularly useful for compact imaging systems that need both wide coverage and close-range observation.

Typical applications include:

• Smart security cameras
• Indoor surveillance
• Embedded AI vision systems
• Robotics and mobile robots
• Industrial equipment monitoring
• Close-range machine vision
• Smart home and IoT cameras
• Compact inspection systems
• Presence and object detection
• IR-assisted monitoring systems
• Edge AI camera modules

Designed for close-range wide-angle imaging applications, this lens is especially useful when the camera has to be installed near the target while still covering a relatively large area.

The 0.1m MOD provides additional flexibility for applications involving small equipment, nearby objects, machine components, or compact robotic platforms.

For broader industrial applications, the lens can be evaluated as part of TOWIN’s Machine Vision and Robotics Vision solutions.

Compatible Device Types

The M12×0.5 interface allows this lens to be integrated into a variety of compact camera platforms, including:

• 1/2.7″ CMOS camera modules
• 3MP embedded camera modules
• Compact IP camera modules
• Smart security cameras
• Robotics vision cameras
• Industrial monitoring cameras
• Embedded machine vision cameras
• Edge AI vision devices
• IoT camera modules
• Compact inspection equipment

Before final integration, the camera designer should verify sensor dimensions, mechanical clearance, optical back focal requirements, and image quality under the intended illumination conditions.

Close-Range Wide-Angle Imaging

One of the most useful characteristics of this lens is its 0.1m minimum object distance. Compared with lenses designed primarily for longer working distances, this configuration provides greater flexibility when the camera must be positioned close to the subject.

This is particularly valuable in compact equipment, robotic systems, indoor monitoring, and machine environments where the available installation distance is limited.

The 113° diagonal FOV allows the lens to maintain broad scene coverage even when installed relatively close to the target. This combination can help reduce blind areas around the camera while keeping the optical assembly compact.

For engineers selecting a lens based on sensor size, focal length, and required coverage, TOWIN’s Sensor Guide and Lens Selection Guide provide useful optical selection references.

IR Corrected Optical Design

The IR corrected configuration is an important feature for imaging systems that may use infrared illumination or operate across different spectral conditions.

When a conventional lens is used with visible and near-infrared wavelengths, wavelength-dependent focusing behavior can affect image sharpness. An IR corrected lens is designed to reduce this focus shift and provide more consistent imaging performance across the intended spectral range.

This makes the lens a useful option for systems combining visible-light imaging with infrared-assisted monitoring, such as smart security cameras, embedded vision devices, and certain industrial monitoring systems.

For applications involving infrared imaging, the final optical configuration should be evaluated together with the camera sensor, IR illumination wavelength, filter configuration, and required operating conditions.

Optical Selection Considerations

The specified distortion is <48%, which reflects the wide-angle nature of this lens. Therefore, it should be selected primarily when broad scene coverage is more important than highly accurate geometric reproduction.

If an application requires precise dimensional measurement, barcode geometry, or highly accurate object positioning, a lower-distortion optical design may be more appropriate.

For general wide-angle monitoring, robotics, and embedded vision, however, the combination of wide FOV and compact M12 integration can provide a practical optical solution.

Engineers can review TOWIN’s Distortion Guide when comparing wide-angle lenses with different distortion characteristics.

Frequently Asked Questions

Q: What type of lens is this 3.6mm M12 lens?

A: This is a fixed focal length M12 wide angle lens designed for 1/2.7″ sensors. It combines a 113° diagonal field of view with 3MP resolution and an IR corrected optical design.

Q: What is the field of view of this lens?

A: The lens provides a 113° diagonal field of view, 90° horizontal field of view, and 68° vertical field of view.

Q: What makes this lens suitable for close-range imaging?

A: Its minimum object distance is only 0.1m, allowing the camera to capture subjects at relatively short distances while maintaining a wide field of view.

Q: Is this lens suitable for 3MP camera modules?

A: Yes. The lens is specified for 3MP imaging and a 1/2.7″ image format, making it suitable for compatible 3MP camera modules and embedded imaging systems.

Q: What does IR corrected mean for this lens?

A: IR correction minimizes wavelength-related focus shifts across visible and near-infrared bands, maintaining stable focus with IR illumination. System designers verify real spectral performance by matching the camera sensor and IR illumination wavelength.

Q: Is this a low-distortion lens?

A: No. The specified distortion is below 48%, so this lens should be positioned as a wide-angle lens rather than a precision low-distortion lens. Its optical design prioritizes broad scene coverage.

Q: Can this lens be used for machine vision?

A: Yes. Ideal for compact machine vision systems that require wide coverage and short working distances, this lens performs better in monitoring, detection and presence sensing than in precision metrology scenarios.

Q: Can this M12 lens be customized for OEM projects?

A: TOWIN supports OEM/ODM optical development for different imaging requirements. Custom optical assessments cover sensor format, focal length, FOV, distortion, working distance, mechanical dimensions, IR and other project specs.

Related Optical Resources

Choosing an M12 lens requires matching the optical design to the sensor, target field of view, working distance, and application environment. TOWIN’s Lens Basics provides an introduction to key lens parameters.

For more detailed selection decisions, see the Lens Selection Guide.

When calculating the required focal length from sensor dimensions and target field of view, the Focal Length Calculator can be used as a preliminary optical selection tool.

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