Wide Angle Lens – S04112709023

S04112709023 is 1/2.7″ 4.1mm High-Precision wide angle lens with Built-In Filter, F2.3 S-Mount Lens with M12 Thread, 2 MP resolution CCTV lens.

4.1mm M12 Wide Angle Lens

This 4.1mm M12 wide angle lens is designed for compact camera systems that require broad scene coverage, a practical working distance, and straightforward optical integration. Designed for a 1/2.7″ image format, it provides a 107° diagonal, 90° horizontal, and 47° vertical field of view, making it suitable for compact monitoring, embedded vision, robotics, and industrial imaging applications.

With a 2MP resolution, F2.3 aperture, M12×0.5 mount, and 0.2m minimum object distance, this fixed focal lens provides a balanced configuration for general-purpose wide-angle imaging. The 22.3mm T.T.L. is suitable for camera assemblies where a compact but mechanically defined optical package is required.

The lens is specified without IRCF, giving system designers flexibility to select the appropriate filter configuration at the camera-module level according to their imaging requirements.

Explore TOWIN’s complete M12 Lenses portfolio for additional focal lengths and optical configurations.

M12 Wide Angle Lens Core Highlights

• 107° Wide-Angle FOV — Provides broad scene coverage with a practical 4.1mm focal length.
• 2MP Imaging Performance — Well suited to general-purpose monitoring, detection, and embedded vision applications.
• F2.3 Fixed Aperture — Provides a stable optical configuration for fixed-position camera systems.
• 0.2m Minimum Object Distance — Supports close-range imaging of equipment, objects, and surrounding environments.
• Without IRCF — Allows greater flexibility for system-level filter configuration and application-specific camera integration.

M12 Wide Angle Lens Applications

Core Application Scenes

This 4.1mm M12 wide angle lens is designed for applications that need broad scene coverage without the extreme viewing geometry of a fisheye lens. Its 107° diagonal FOV allows a compact camera to observe a substantial area from a relatively short installation distance.

Typical applications include:

• Indoor smart security cameras
• Compact surveillance modules
• Industrial equipment monitoring
• Robotics visual awareness
• Embedded vision systems
• Machine status monitoring
• Short-range object detection
• Smart IoT cameras
• Edge AI imaging devices
• Compact industrial cameras

Designed for compact wide-angle monitoring and embedded vision applications, the lens is particularly useful where camera size, field coverage, and straightforward integration are important.

The 0.2m minimum object distance also makes it suitable for close-range monitoring. For example, a camera mounted near machinery can observe equipment status, nearby objects, or operator interaction without requiring a long optical working distance.

For application-specific projects, this lens can be considered alongside TOWIN’s Machine Vision, Robotics Vision, and Smart Security solutions.

Compatible Device Types

The lens can be integrated into compatible:

• 1/2.7″ CMOS camera modules
• 2MP embedded camera modules
• Compact IP camera modules
• Indoor security cameras
• Industrial monitoring cameras
• Robotics vision modules
• Embedded machine vision cameras
• Smart IoT imaging devices
• Edge AI camera systems
• Compact surveillance equipment

The M12×0.5 interface makes the lens suitable for camera modules where a small threaded lens mount is required.

Wide-Angle Coverage for Compact Camera Systems

The 4.1mm focal length provides a broad viewing angle while avoiding the more extreme field geometry associated with fisheye optics. With a 90° horizontal FOV and 47° vertical FOV on a 1/2.7″ sensor, the lens can cover a relatively large horizontal scene.

This makes it particularly useful for applications such as indoor monitoring, equipment observation, robotics perception, and compact embedded cameras.

The specified TV distortion of less than -19% should be considered together with the 107° diagonal FOV. The lens is primarily a wide-angle design rather than a precision low-distortion lens. For general monitoring and detection applications, this optical balance can provide useful scene coverage without requiring an ultra-short focal length.

For projects where distortion is a major lens-selection criterion, TOWIN’s Distortion Guide provides additional technical reference.

Flexible Filter Configuration Without IRCF

Unlike lenses supplied with an integrated infrared cut filter, this model is specified without IRCF. This is an important configuration detail for camera designers because the final spectral response can be determined at the system level.

A lens without IRCF may be considered when the camera manufacturer needs to:

• Select a separate optical filter according to the application
• Develop a customized spectral imaging configuration
• Integrate the lens into a camera module with its own filter assembly
• Adapt the optical system to a specific sensor or imaging requirement

The absence of IRCF should not be interpreted as an indication that the lens is IR corrected. For projects requiring specific near-infrared imaging performance, the complete lens, filter, sensor, and illumination configuration should be evaluated together.

For customized optical requirements, TOWIN can evaluate application-specific configurations through its contact and OEM/ODM service.

Close-Range Imaging Capability

The 0.2m minimum object distance gives this lens useful flexibility in compact installations. It can capture nearby objects and equipment without requiring the camera to be positioned far from the target.

This characteristic is useful for:

• Machine status observation
• Robotic close-range perception
• Indoor equipment monitoring
• Compact security cameras
• Short-distance object detection
• Embedded industrial imaging

The 22.3mm T.T.L. should also be considered during mechanical camera design to ensure sufficient space is available between the lens assembly and the sensor module.

For engineers evaluating the relationship between focal length, sensor size, and field of view, TOWIN’s Sensor Guide provides useful background information.

Frequently Asked Questions

Q: What type of lens is the 4.1mm M12 lens?

A: It is a fixed focal M12 wide angle lens designed for a 1/2.7″ image format. It offers a 107° diagonal field of view and serves compact monitoring and embedded vision applications.

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

A: The specified field of view is 107° diagonal, 90° horizontal, and 47° vertical on a 1/2.7″ sensor.

Q: Is this lens suitable for 2MP cameras?

A: Yes. The lens is specified for 2MP imaging and a 1/2.7″ image format, making it suitable for compatible 2MP CMOS camera modules.

Q: Is this a low-distortion M12 lens?

A: The lens has a specified TV distortion of less than -19%. This delivers a relatively controlled wide-angle configuration, but users cannot position this lens as a dedicated precision low-distortion lens.

Q: What does “Without IRCF” mean?

A: It means the lens is supplied without an integrated infrared cut filter. This allows the camera manufacturer to determine the filter configuration separately according to the sensor and application requirements.

Q: Is this lens IR corrected?

A: No IR-corrected specification is provided for this model, and it should not be classified as an IR Corrected Lens based solely on the available parameters. The product is specifically specified as without IRCF.

Q: What is the minimum object distance?

A: The minimum object distance is 0.2m, allowing the lens to capture relatively close subjects and equipment.

Q: Is this lens suitable for machine vision applications?

A: Yes. It fits selected embedded machine vision and industrial monitoring applications that demand wide scene coverage and compact M12 integration. For precision measurement work, evaluate distortion and imaging performance against your specific inspection requirements.

Related Optical Resources

Selecting a suitable M12 lens requires consideration of the sensor format, focal length, FOV, distortion, working distance, and mechanical configuration together.

TOWIN’s Lens Selection Guide provides practical guidance for comparing these parameters when developing a new camera system.

For basic concepts related to focal length, FOV, and optical performance, visit Lens Basics.

If you already know the sensor size and required field of view, the FOV Calculator can be used to estimate the required optical coverage.

For more information about customized lens requirements, contact TOWIN.

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