Wide Angle Lens – M803112908025F

M803112908025F is Low Distortion Wide-angle CCTV lens with Built-In IR Filter, 1/2.9″ format, M8x0.35 mount, and F2.5 aperture for security surveillance.

3.1mm M8 Wide Angle Fixed Focal Lens

This 3.1mm M8 wide angle lens is a compact fixed focal lens designed for miniature camera modules requiring broad scene coverage in a space-efficient optical package. Optimized for a 1/2.9″ sensor and the OV2718 platform, it provides a 90° diagonal field of view with a 3.1mm focal length. Its M8 × 0.35 mount, F2.5 aperture, 14.6mm TTL, and integrated IRCF make it suitable for compact embedded and monitoring camera designs where wide-area image capture is required.

Product Highlights at a Glance

• 90° diagonal FOV provides broad scene coverage from a compact 3.1mm lens.
• 2MP resolution supports standard-definition embedded camera applications.
• 3.1mm fixed focal length provides a wide viewing perspective for compact camera modules.
• M8 × 0.35 mount supports integration into miniature optical assemblies.
• 2G2P + IRCF structure combines compact optical construction with infrared-cut filtering.

3.1mm M8 Wide Angle Lens Applications

Core Application Scenes

This 3.1mm M8 wide angle lens is designed for compact camera systems that need to capture a relatively broad scene from a small optical package. With a 90° diagonal FOV and 80° horizontal FOV on a 1/2.9″ sensor, it can cover a substantial viewing area without requiring a long focal length or large mechanical assembly.

The lens has a specified distortion of less than -9.7%, indicating noticeable barrel-type geometric distortion. Rather than treating this as a limitation in every application, designers can select this optical configuration when wide-area coverage and compact optical packaging are more important than highly rectilinear image geometry, particularly in applications where image processing or software correction can compensate for lens distortion.

The compact M8 × 0.35 mounting interface and 14.6mm TTL make this lens suitable for embedded camera modules where available installation space is restricted. The F2.5 aperture provides a practical optical configuration for general-purpose compact imaging, while the integrated IRCF supports conventional visible-light camera architectures that require infrared-cut filtering.

This lens can therefore be considered for compact monitoring cameras, embedded IoT cameras, access or device-monitoring modules, robotic observation units, and other small visual sensing systems where broad coverage is prioritized over low-distortion measurement imaging.

When distortion characteristics are important to the system design, engineers should evaluate whether the application requires a rectilinear image or whether digital correction is acceptable. Towin’s Distortion Guide provides additional information for understanding lens distortion and its impact on image geometry.

Designed for compact wide-angle embedded imaging and applications where broad scene coverage is prioritized over low geometric distortion.

Compatible Device List

• Compact 2MP Camera Modules: Designed around a 1/2.9″ sensor format and suitable for standard 2MP imaging applications.
• Embedded Monitoring Cameras: The 90° diagonal FOV can provide broad coverage from a relatively small camera assembly.
• Smart IoT Devices: Suitable for compact connected devices that require visual observation without a large optical module.
• Robotic Observation Modules: The wide-angle perspective can help small robotic systems capture a broader nearby environment.
• Access and Equipment Monitoring: Suitable for applications where general scene observation is more important than precision geometric measurement.
• Customized Miniature Camera Assemblies: The M8 × 0.35 mount and 14.6mm TTL support integration into customized compact housings.

For additional miniature optical configurations, explore Towin’s M8/M7/M6 Miniature Lenses category. If your camera design uses an M12 interface, the M12 Lenses range provides an alternative miniature mounting platform.

For engineers comparing focal length and viewing coverage, Towin’s Lens Selection Guide explains the key parameters involved in choosing a suitable lens. The FOV Calculator can also be used to evaluate how focal length and sensor dimensions affect the resulting field of view.

If a project requires lower distortion, a different sensor format, or a customized focal length and mechanical configuration, contact Towin to discuss the optical requirements.

Frequently Asked Questions

Q: What type of lens is this 3.1mm M8 lens?
A: It is a fixed focal wide angle lens designed for 1/2.9″ camera sensors, providing a 90° diagonal FOV and 80° horizontal FOV.

Q: Is this lens a low distortion lens?
A: No. The specified distortion is below -9.7%, indicating significant barrel-type distortion. It should not be categorized as a low distortion lens.

Q: Is this 3.1mm M8 lens a fisheye lens?
A: It is not classified as a fisheye lens based on the available specifications. Although it provides a 90° diagonal FOV and noticeable barrel distortion, the current data does not identify it as a fisheye optical design.

Q: What sensor is this lens designed for?
A: The lens is specified for a 1/2.9″ image format and the FOV data is provided based on the OV2718 sensor.

Q: What is the field of view of the 3.1mm lens?
A: On the specified 1/2.9″ sensor, the lens provides 90° diagonal, 80° horizontal, and 49° vertical field of view.

Q: What does the -9.7% distortion specification mean?
A: The negative distortion value indicates barrel-type geometric distortion. Straight lines toward the image edges may appear curved outward, so applications requiring precise geometric reproduction should account for this characteristic.

Q: Can the distortion be corrected digitally?
A: Software‑based correction can compensate barrel distortion, subject to camera system, image‑processing pipeline, application demands, image quality and processing capacity.

Q: What applications are suitable for this wide angle lens?
A: Typical applications cover compact monitoring cameras, embedded IoT vision, robotic observation modules and equipment‑monitoring systems, prioritizing wide scene coverage over strict low‑distortion performance.

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