Fisheye Lens – S02812512126

S02812512126 is 1/2.5″ 2.8mm Premium Wide Angle Lens Manufacturer, 170° IR corrected M12 Fisheye Lens, F2.6 aperture 3-Megapixel CCTV lens.

2.8mm 3MP M12 IR Corrected Fisheye Lens

This 2.8mm 3MP M12 fisheye lens is designed for compact imaging systems that require an exceptionally wide field of view in a small optical package. With up to 170° diagonal FOV, 121° horizontal FOV, and 85° vertical FOV, it captures a broad scene from a short working distance while maintaining compatibility with 1/2.5″ sensors.

The lens features an M12×0.5 mount, fixed iris, 0.3m minimum object distance, and IR-corrected optical performance, making it suitable for wide-area surveillance, smart security cameras, embedded vision devices, and other compact imaging applications.

For projects requiring a compact wide-angle solution, this lens can be integrated with TOWIN’s broader M12 Lenses portfolio.

M12 Fisheye Lens Core Highlights

• 170° ultra-wide field of view captures a very large scene with a 2.8mm focal length.
• IR-corrected optical design helps maintain image focus consistency across visible and infrared imaging conditions.
• 1/2.5″ sensor compatibility supports compact 3MP camera modules and embedded imaging systems.
• M12×0.5 compact mount simplifies integration into small camera housings and space-constrained devices.
• 0.3m MOD and F2.6 aperture provide practical flexibility for nearby wide-area imaging applications.

M12 Fisheye Lens Applications

Wide-Area Surveillance

The 170° diagonal FOV makes this lens particularly useful when a camera needs to monitor a large area from a relatively fixed position. Its fisheye optical design can reduce the need for multiple cameras in applications where broad scene coverage is more important than rectilinear geometry.

Typical applications include indoor security cameras, room monitoring, entrance surveillance, retail observation, and compact panoramic imaging devices.

Designed for wide-area security surveillance, this lens provides a practical combination of ultra-wide coverage, compact M12 mounting, and IR-corrected imaging.

For more security-oriented optical solutions, explore TOWIN’s Smart Security solutions.

Smart Camera & Embedded Vision

The compact M12×0.5 mount and 20.7mm TTL make the lens suitable for embedded camera designs where installation space is limited. The 2.8mm focal length provides extensive scene coverage without requiring a large optical assembly.

It can be considered for:

• Smart indoor cameras
• Compact monitoring cameras
• IoT vision devices
• Embedded security cameras
• Retail monitoring systems
• Doorway and entrance cameras
• Small panoramic imaging modules

IR-Enabled Imaging Systems

Unlike a standard visible-light-only wide-angle lens, this model is specified as IR Corrected, making it more suitable for camera systems that operate across visible and infrared illumination conditions. This can be useful in surveillance systems incorporating infrared illumination for low-light or nighttime monitoring.

For applications involving optical filters or IR-related camera components, TOWIN also provides Optical Filters and IR Cut Filter Switcher Holders.

Why Choose This 2.8mm M12 Fisheye Lens?

A conventional wide-angle lens may not provide sufficient coverage when the camera must observe a large area from a short installation distance. This 2.8mm fisheye lens addresses that requirement with a 170° diagonal field of view, making it particularly suitable for applications where maximum scene coverage is the priority.

The combination of a 1/2.5″ image format, 3MP resolution, F2.6 aperture, M12×0.5 mount, and IR-corrected design provides a balanced optical solution for compact camera platforms.

When selecting an ultra-wide lens, sensor format and field of view should be evaluated together. TOWIN’s Sensor Guide provides additional information for matching lenses with camera sensors, while the FOV Calculator can help estimate coverage for different focal lengths and sensor formats.

Frequently Asked Questions

Q: What is the field of view of this 2.8mm M12 lens?
A: The lens provides a 170° diagonal field of view, 121° horizontal field of view, and 85° vertical field of view on a 1/2.5″ image format.

Q: Is this lens a fisheye lens?
A: Yes. The extremely wide 170° diagonal FOV and high optical distortion are characteristic of a fisheye lens designed to maximize scene coverage rather than maintain rectilinear geometry.

Q: Is this a low-distortion lens?
A: No. The specified distortion is less than 85%, so this lens is designed for ultra-wide/fisheye imaging rather than low-distortion machine vision applications.

Q: What sensor size is this lens designed for?
A: The specified image format is 1/2.5″, with a resolution rating of 3MP.

Q: Is the lens IR corrected?
A: Yes. The lens is specified as IR Corrected, making it suitable for camera systems that need more consistent imaging performance across visible and infrared wavelengths.

Q: What type of mount does this lens use?
A: It uses an M12×0.5 mount, a compact mounting interface commonly used in embedded cameras, security cameras, and small vision modules.

Q: What is the minimum object distance?
A: The minimum object distance is 0.3m, providing practical flexibility for relatively close-range wide-area imaging.

Q: Where can I find more M12 wide-angle lenses?
A: TOWIN offers a range of M12 Lenses, including wide-angle, fisheye, low-distortion, and other compact optical configurations for different imaging requirements.

Related Optical Resources

Choosing an ultra-wide lens involves more than comparing focal length alone. Field of view, sensor format, distortion, working distance, and infrared requirements should all be considered during lens selection. TOWIN’s Lens Selection Guide provides additional guidance for choosing an appropriate optical configuration.

For this particular lens type, the Distortion Guide is also useful because fisheye lenses intentionally accept significant geometric distortion to achieve extremely wide coverage.

If you are developing a custom camera module or require a different focal length, sensor format, mounting interface, or optical configuration, you can contact TOWIN for lens selection and OEM/ODM support.

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