Fisheye Lens – S02712512018

S02712512018 2.8mm M12 5MP fisheye lens with 170° FOV, F1.8 aperture and 1/2.5″ or 1/3″ sensor support for panoramic vision.

2.8mm M12 5MP Fisheye Lens

This 2.8mm M12 fisheye lens is designed for ultra-wide-angle imaging where maximum scene coverage is more important than geometric accuracy. With up to 170° diagonal FOV on a 1/2.5″ sensor, 5MP resolution, F1.8 aperture, and M12×0.5 mount, it provides a broad viewing perspective for compact camera systems.

The lens supports both 1/2.5″ and 1/3″ image formats, with a 120° horizontal FOV on 1/2.5″ and 96° horizontal FOV on 1/3″. Its compact fixed-focus optical configuration makes it suitable for panoramic monitoring, embedded cameras, robotics awareness, indoor surveillance, and other applications requiring extensive visual coverage.

M12 Fisheye Lens Core Highlights

• Ultra-Wide 170° FOV: Delivers extremely broad scene coverage on a 1/2.5″ sensor, helping reduce blind spots in wide-area imaging.
• 5MP Resolution: Provides detailed image capture for monitoring, embedded vision, and visual awareness systems.
• F1.8 Wide Aperture: Allows more light into the optical system for improved imaging performance in indoor and relatively low-light environments.
• Dual Sensor Compatibility: Supports 1/2.5″ and 1/3″ image formats with different FOV configurations.
• Compact M12×0.5 Mount: Simplifies integration into small camera modules and space-constrained imaging equipment.

M12 Fisheye Lens Applications & Compatible Devices

Core Application Scenes

This 2.8mm M12 fisheye lens is designed for applications that require a very wide field of view to capture more of the surrounding environment with a single camera. Its 170° diagonal FOV on a 1/2.5″ sensor makes it particularly useful when reducing blind areas is a higher priority than maintaining straight-line geometry.

Designed for ultra-wide panoramic and environmental awareness applications.

Typical applications include:

• Panoramic security monitoring
• Wide-area indoor surveillance
• Embedded camera systems
• Robotics environmental awareness
• Smart home monitoring
• Compact panoramic cameras
• Indoor monitoring equipment
• Doorway and entrance monitoring
• Vehicle cabin monitoring
• Wide-area scene detection
• Mobile and portable imaging devices

For security applications requiring broad visual coverage, this lens can complement TOWIN’s Smart Security Solutions.

For robotic systems that need a wide environmental view for navigation or obstacle awareness, it can also be considered alongside Robotics Vision Solutions.

Compatible Device List

The M12×0.5 mounting interface makes this lens suitable for a range of compact camera platforms, including:

• 1/2.5″ camera modules
• 1/3″ camera modules
• 5MP embedded cameras
• Panoramic camera modules
• Compact surveillance cameras
• Robotic vision modules
• Smart home cameras
• Indoor monitoring cameras
• Portable imaging devices
• OEM camera systems

The actual FOV depends on the sensor format. On a 1/2.5″ sensor, the lens provides 170° diagonal, 120° horizontal, and 86° vertical FOV. On a 1/3″ sensor, the corresponding FOV is 127° diagonal, 96° horizontal, and 71° vertical.

For help matching a lens with a specific sensor, see TOWIN’s Sensor Guide.

Optical Design Considerations

The < -86% distortion specification indicates a strong fisheye optical characteristic. This allows the lens to achieve an exceptionally wide field of view, but straight lines near the image edges may appear significantly curved.

As a result, this lens is best suited to applications such as panoramic monitoring, environmental awareness, and wide-area detection where scene coverage is the primary requirement. It is generally not the preferred choice for precision dimensional measurement or applications where low geometric distortion is critical.

When evaluating whether the 2.8mm focal length provides sufficient coverage for a particular installation, the FOV Calculator can be used to estimate the viewing area based on sensor size and object distance.

For additional information about distortion and how it affects lens selection, see TOWIN’s Distortion Guide.

Frequently Asked Questions

Q: What type of lens is this 2.8mm M12 lens?
A: It is a 5MP M12 fisheye lens with an ultra-wide field of view. It provides up to 170° diagonal FOV on a 1/2.5″ sensor and is designed for applications requiring extensive scene coverage.

Q: What is the maximum FOV of this lens?
A: On a 1/2.5″ sensor, the lens provides 170° diagonal, 120° horizontal, and 86° vertical FOV. On a 1/3″ sensor, it provides 127° diagonal, 96° horizontal, and 71° vertical FOV.

Q: Why does this lens have such high distortion?
A: The high distortion is a characteristic of fisheye optics and enables the lens to capture an exceptionally wide field of view. This design prioritizes scene coverage rather than preserving straight-line geometry.

Q: Is this lens suitable for low-light applications?
A: The F1.8 aperture allows a relatively large amount of light to reach the sensor, making the lens suitable for indoor and other applications where available illumination may be limited. Actual low-light performance also depends on the camera sensor and image-processing system.

Q: Can this lens be used with a 1/3″ sensor?
A: Yes. The lens supports both 1/2.5″ and 1/3″ image formats. The FOV changes according to the sensor size, with a 127° diagonal FOV on the 1/3″ format.

Q: What cameras can use this M12 lens?
A: The M12×0.5 mount allows integration with compatible 1/2.5″ or 1/3″ camera modules, including compact surveillance, panoramic, embedded, robotic, and OEM camera systems.

Q: Can TOWIN customize this fisheye lens?
A: TOWIN can support customized optical and mechanical requirements for OEM and ODM projects, including sensor format, focal length, FOV, mount, optical performance, and mechanical dimensions. Contact the TOWIN team to discuss your project.

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