Fisheye Lens – S02712512018F-1

S02712512018F-1 is 2.8mm High-Performance M12 Fisheye Lens With filter, Low F-number S-Mount Lens (F1.8), 5-Megapixel resolution CCTV lens.

2.8mm 5MP M12 Fisheye Lens

This 2.8mm 5MP M12 fisheye lens is designed for compact camera systems requiring extremely wide scene coverage across different sensor formats. Supporting 1/2.5″ and 1/3″ image formats, it provides up to 170° diagonal FOV, an F1.8 aperture, and M12×0.5 mounting, making it suitable for panoramic surveillance, smart cameras, embedded vision, and wide-area monitoring applications.

M12 Fisheye Lens Core Highlights

• 170° Ultra-Wide FOV: Provides extremely broad scene coverage on a 1/2.5″ sensor.
• Dual Sensor Format Support: Designed for both 1/2.5″ and 1/3″ image formats.
• 5MP Resolution: Delivers detailed imaging for wide-area camera applications.
• F1.8 Aperture: Provides strong light-gathering capability for compact imaging systems.
• M12×0.5 Mount: Supports integration into compact camera modules and embedded vision devices.

The lens combines a 2.8mm focal length, 170° diagonal FOV, and F1.8 aperture, making it a strong choice for applications where a single compact camera needs to capture a very large surrounding area. The field of view changes with sensor format, allowing system designers to select the appropriate camera sensor according to their required coverage. The FOV Calculator can be used to estimate the expected viewing area for a specific installation.

M12 Fisheye Lens Applications

Core Application Scenes

This 2.8mm M12 fisheye lens is designed for wide-area imaging systems where maximizing visual coverage from a single camera is more important than maintaining rectilinear image geometry. Its ability to support both 1/2.5″ and 1/3″ image formats gives camera manufacturers additional flexibility when developing different camera platforms.

For indoor panoramic monitoring, the 170° diagonal FOV on a 1/2.5″ sensor can cover a very broad section of a room, entrance, retail area, or public space from a compact camera position. This can help reduce blind spots and minimize the number of cameras required for certain monitoring layouts.

The lens is also suitable for smart home and IoT camera systems, where compact mechanical dimensions, broad scene coverage, and practical light-gathering performance are important. The F1.8 aperture provides a useful advantage for camera modules operating in indoor environments with changing or limited illumination.

For retail and commercial monitoring, the wide-angle optical configuration can capture customer areas, display zones, entrances, and other broad scenes where a conventional narrow-angle lens may require multiple camera positions.

Because the lens is intentionally designed for extreme wide-angle imaging, the specified < -86% distortion should be treated as a core optical characteristic rather than a defect. Applications requiring precise dimensional measurement or geometrically accurate imaging should use a lower-distortion optical design instead.

Compatible Device List

• Panoramic Indoor Cameras: Suitable for cameras designed to capture a large room or interior area from a single position.
• Smart Home Security Cameras: The wide FOV helps provide broad room awareness while maintaining a compact camera configuration.
• Retail Monitoring Cameras: Suitable for stores, display areas, entrances, and customer activity zones.
• Embedded IoT Cameras: The M12×0.5 interface supports integration into compact connected camera modules.
• Wide-Area Security Cameras: Useful where minimizing blind spots is more important than maintaining low geometric distortion.
• Compact Panoramic Imaging Modules: Suitable for camera designs requiring a very wide viewing angle and flexible sensor selection.
• Indoor Environmental Monitoring Cameras: The broad coverage can support monitoring of rooms, equipment zones, and shared indoor spaces.

Designed for panoramic surveillance, smart home imaging, retail monitoring, and compact wide-area camera applications.

For additional compact optical configurations, explore the M12 Lenses category. Engineers selecting between different sensor formats and focal lengths can also refer to the Lens Selection Guide.

For applications where distortion is an important selection factor, the Distortion Guide provides additional information about wide-angle optical performance.

For customized lens specifications, mechanical configurations, or OEM/ODM camera development, contact TOWIN to discuss your project.

Frequently Asked Questions

Q: What type of lens is this 2.8mm M12 lens?
A: It is a fixed focal length M12 fisheye lens designed for extremely wide scene coverage, with up to 170° diagonal FOV on a 1/2.5″ sensor.

Q: What is the field of view on a 1/2.5″ sensor?
A: The lens provides 170° diagonal FOV, 120° horizontal FOV, and 86° vertical FOV when used with a 1/2.5″ image format.

Q: What is the field of view on a 1/3″ sensor?
A: With a 1/3″ sensor, the specified field of view is 127° diagonal, 96° horizontal, and 71° vertical.

Q: Can this lens be used with both 1/2.5″ and 1/3″ sensors?
A: Yes. The optical specification supports both 1/2.5″ and 1/3″ image formats, although the resulting field of view changes according to the sensor size.

Q: Is this a low distortion M12 lens?
A: No. The specified distortion is less than -86%, so the lens is designed as a fisheye optical solution that prioritizes extremely wide scene coverage rather than geometric accuracy.

Q: What is the advantage of the F1.8 aperture?
A: The F1.8 aperture provides strong light-gathering capability, which can be beneficial for indoor cameras and other applications operating under changing or relatively limited lighting conditions.

Q: What applications are suitable for this 5MP M12 fisheye lens?
A: It is suitable for panoramic surveillance, smart home cameras, retail monitoring, indoor wide-area imaging, embedded IoT cameras, and other compact camera systems requiring extensive scene coverage.

Q: Does this lens have a fixed focal length?
A: Yes. The focal length is fixed at 2.8mm, with no variable optical zoom mechanism.

Optical Selection & Related Resources

Selecting a fisheye lens requires balancing sensor format, focal length, field of view, aperture, image circle, and distortion. The Lens Basics section provides useful background on these fundamental optical parameters.

Because this lens supports both 1/2.5″ and 1/3″ sensors, engineers should evaluate the resulting FOV before finalizing the camera configuration. The FOV Calculator can help compare expected coverage at different sensor and installation configurations.

The Sensor Guide can also help engineers evaluate sensor format compatibility when selecting an M12 lens.

For more compact wide-angle and fisheye solutions, explore the M12 Lenses range. For customized optical development, mechanical integration, or OEM/ODM requirements, contact TOWIN for application-specific support.

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