M12 Lenses – S02812509424D8

S02812509424D8 is 2.8mm M12/S-Mount wide-angle CCTV lens, 2-Megapixel low distortion lens, fixed F2.4 aperture, with 850nm IR dual pass filter.

2.8mm M12 2MP Ultra-Low Distortion Lens

This 2.8mm M12 lens is a compact 2MP wide-angle lens designed for imaging systems that require a broad field of view with exceptionally low geometric distortion. With distortion below 0.1%, F2.4 aperture, and a Visible + 850nm dual-pass filter, it provides reliable image geometry for compact machine vision, smart sensing, and near-infrared imaging applications.

Product Highlights at a Glance

• Ultra-low distortion: Less than 0.1% distortion helps preserve accurate object geometry across the image.
• Wide-angle coverage: Up to 106° diagonal FOV on a 1/2.5″ sensor for compact wide-area imaging.
• Visible + 850nm dual pass: Supports visible-light and 850nm near-infrared imaging within one optical design.
• Compact M12 format: M12x0.5 mounting and 15.2mm TTL make it suitable for space-constrained camera assemblies.
• Close-range imaging: 0.2m minimum object distance supports inspection and sensing at relatively short working distances.

2.8mm M12 Low Distortion Lens Applications

Core Application Scenes

This M12 lens is designed for applications where wide-angle coverage and precise image geometry are both important. The extremely low distortion specification helps reduce the barrel or pincushion deformation that can affect dimensional inspection, object localization, and vision-based measurement.

The 2.8mm focal length provides a broad field of view, reaching 106° diagonal on a 1/2.5″ sensor. This makes the lens suitable for compact cameras that need to observe a relatively large area without using an ultra-short fisheye optical design.

The Visible and 850nm Dual Pass Filter makes this lens particularly useful for systems combining standard visible-light imaging with 850nm illumination or sensing. It can be integrated into smart sensing devices, compact inspection cameras, embedded vision systems, and machine vision equipment where both optical compatibility and compact dimensions are important.

Designed for wide-angle machine vision and visible/850nm dual-band imaging applications.

Compatible Device List

• Compact M12 industrial cameras
• 1/2.5″ and 1/2.7″ image sensor modules
• Embedded machine vision cameras
• Smart sensing and inspection cameras
• Near-infrared imaging modules using 850nm illumination
• Compact robotic vision systems
• Fixed-position monitoring and detection cameras
• OEM camera modules requiring an M12x0.5 mount

For systems requiring different sensor sizes or focal lengths, explore TOWIN’s M12 Lenses for additional compact optical configurations.

For applications where geometric accuracy is especially important, the Low Distortion Lens range provides additional options for minimizing image deformation.

The lens can also be considered for Machine Vision systems where field coverage, distortion control, and sensor compatibility must be balanced during optical selection.

Frequently Asked Questions

Q: What sensor sizes can this 2.8mm M12 lens support?
A: The lens provides specified FOV data for 1/2.5″ and 1/2.7″ sensors. Its maximum image format is Φ7.3mm, so sensor compatibility should be confirmed against the actual sensor image circle.

Q: How low is the distortion of this lens?
A: The specified TV distortion is less than -0.1%, making it an ultra-low distortion optical solution for applications where maintaining accurate image geometry is important.

Q: Is this lens a fisheye lens?
A: No. Although it provides a wide field of view, its distortion is below 0.1%, which is fundamentally different from the highly distorted projection normally associated with fisheye lenses.

Q: What does the 850nm dual-pass filter mean?
A: The optical design uses a Visible and 850nm Dual Pass Filter, allowing transmission in the visible range and around 850nm. Actual system performance depends on the camera sensor and illumination source.

Q: What is the minimum object distance of this lens?
A: The M.O.D. is 0.2m, meaning the lens is specified for imaging objects from approximately 200mm away and beyond, subject to the final camera configuration.

Q: What type of camera uses the lens?
A: It uses an M12x0.5 mount and is suitable for compact camera modules, embedded vision cameras, machine vision systems, and other devices designed around M12 interchangeable lenses.

Q: What applications benefit from the low distortion design?
A: Applications such as machine vision inspection, object measurement, positioning, embedded vision, and smart sensing can benefit because lower optical distortion helps maintain more accurate object shapes and relative dimensions.

For help selecting the appropriate focal length, sensor format, and field of view, TOWIN’s Lens Selection Guide and FOV Calculator can be used during system design.

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