Low Distortion Lens – M702514007240

M702514007240 is Low-distortion CCTV lens with 1/4″ 2.5mm 86° M7X0.35 Mount, 5-Megapixel, F4.0 aperture, suitable for security surveillance.

2.5mm M7 5MP Low Distortion Lens

This 2.5mm M7 low distortion wide angle lens is a compact fixed focal lens designed for 5MP miniature camera modules that require broad scene coverage with controlled image geometry. Featuring an 86° diagonal FOV on the OV5640 1/4″ sensor and less than 1% distortion, it provides a wide perspective while maintaining accurate image reproduction. Its M7 × 0.35 mount, 0.1m minimum object distance, and compact 10.8mm TTL make it suitable for embedded vision and space-constrained camera systems.

Product Highlights at a Glance

• 86° diagonal FOV provides broad scene coverage from a compact 2.5mm lens.
• <1% distortion helps maintain accurate geometric image reproduction.
• 5MP resolution support is suitable for higher-detail miniature camera modules.
• 0.1m M.O.D. enables close-range imaging in compact devices.
• M7 × 0.35 mount with 10.8mm TTL supports space-constrained camera integration.

2.5mm M7 Low Distortion Lens Applications

Core Application Scenes

This 2.5mm M7 low distortion lens is designed for compact imaging systems that need a relatively wide field of view without the strong geometric distortion associated with fisheye optics. With an 86° diagonal FOV and distortion below 1%, it can capture a broad scene while maintaining a more natural representation of straight lines and object shapes.

The lens is particularly suitable for compact embedded vision cameras, smart IoT imaging devices, robotic sensing modules, miniature inspection equipment, and close-range visual monitoring systems. Its 5MP resolution capability provides additional image detail for applications where the camera needs to capture small features or identify objects within a relatively broad scene.

The 0.1m minimum object distance is especially useful for close-range imaging. This allows the lens to be positioned relatively near the target while still providing a wide viewing perspective, which can benefit compact equipment-monitoring modules, interactive devices, and small robotic systems.

The CRA below 16.5° and relative illumination above 47% further support integration with compact image sensors by helping maintain practical illumination characteristics across the image field. Engineers can evaluate these optical parameters together with sensor specifications using Towin’s Sensor Guide.

Designed for high-resolution compact vision systems requiring wide coverage and controlled geometric distortion.

Compatible Device List

• 5MP Embedded Camera Modules: Designed around 1/4″ sensor applications such as OV5640-based compact camera systems.
• Compact Inspection Cameras: The 5MP resolution and <1% distortion are suitable for applications where image detail and geometric consistency are important.
• Robotic Vision Modules: The 86° FOV provides broad environmental coverage while maintaining controlled distortion for compact robotic cameras.
• Smart IoT Imaging Devices: Suitable for small connected devices requiring a wider perspective without fisheye-level image deformation.
• Close-Range Monitoring Systems: The 0.1m M.O.D. enables imaging of nearby objects in space-constrained equipment.
• Customized Camera Assemblies: The M7 × 0.35 mounting interface and 10.8mm TTL can be integrated into customized miniature camera housings.

For additional miniature lens configurations, explore Towin’s M8/M7/M6/M5/M3.5 Small Mount Lenses. For another compact camera mounting platform, see the M12 Lenses range.

When selecting a wide-angle lens for a high-resolution sensor, focal length should be evaluated together with sensor size, FOV, distortion, and image circle. Towin’s Lens Selection Guide provides practical guidance for comparing these parameters, while the Lens Basics section explains the fundamentals of focal length and optical performance.

For applications where image geometry is important, the Distortion Guide can help engineers understand how lens distortion influences captured images and system-level accuracy.

Frequently Asked Questions

Q: Is this 2.5mm M7 lens a fisheye lens?
A: No. Delivering an 86° diagonal FOV, the lens features <1% distortion, classifying it as a low‑distortion wide‑angle lens instead of a fisheye lens.

Q: What sensor is this lens designed for?
A: The specified FOV is based on the OV5640 sensor with a 1/4″ image format. The lens supports up to 5MP resolution according to the provided specification.

Q: What is the field of view of this 2.5mm lens?
A: On the OV5640 sensor, the lens provides approximately 86° diagonal, 72° horizontal, and 57° vertical field of view.

Q: What is the advantage of less than 1% distortion?
A: Low distortion performance preserves object shape and position while minimizing straight‑line bending, suiting compact imaging systems requiring geometric consistency.

Q: What is the minimum object distance of this lens?
A: The M.O.D. is 0.1m, allowing the lens to focus on relatively close objects. This makes it useful for compact devices where the camera may need to be positioned near the target.

Q: What does the F4.0 aperture mean for this lens?
A: F4.0 indicates the maximum specified aperture of the optical system. Compared with a wider aperture, it provides a different balance between light transmission, optical compactness, and depth of field.

Q: What does the M7 × 0.35 mount mean?
A: It specifies the mechanical mounting thread of the lens, with an M7 nominal thread diameter and 0.35mm thread pitch. It is intended for miniature camera assemblies and compact optical housings.

Q: Can this 5MP M7 lens be customized for another camera module?
A: Custom optical and mechanical configurations can be evaluated according to sensor format, resolution, FOV, distortion, mounting interface, BFL, TTL, and application requirements. Engineers can contact Towin for project-specific optical customization.

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