M12 Lens Ir Cut Filter

Author : jack wang | Published On : 09 Jun 2026

When building reliable PCB board cameras, mini surveillance devices and embedded vision systems, the M12 Lens paired with a professional M12 Lens Ir Cut Filter has become the mainstream optical solution across global industries. TOWIN, a professional industrial lens manufacturer based in Xiamen, China, has spent years optimizing M12 Lens and matching M12 Lens Ir Cut Filter products, delivering stable, high-precision optical accessories that adapt to complex light environments. This article comprehensively introduces TOWIN’s M12 Lens series, the supporting M12 Lens Ir Cut Filter, key parameters, core strengths and practical usage questions, helping users select suitable optical components efficiently.

Key Parameters of TOWIN M12 Lens and Matched M12 Lens Ir Cut Filter

As a standard S-mount optical component, the M12 Lens features a universal M12×0.5 thread interface, also widely known as a board lens or miniature lens due to its compact structure and direct installation on PCB cameras. TOWIN’s full range of M12 Lens covers diverse specifications to meet different resolution, aperture and focal length demands, with strict dimensional tolerance control for industrial-grade stability.

In terms of core specifications, TOWIN’s mainstream 5MP M12 Lens supports 1/2" sensor size, with an F2 aperture that balances light intake and imaging sharpness. Multiple models feature focal lengths ranging from 2.1mm to 6mm, with overall lens length controlled between 10mm and 27mm and dimensional tolerance limited to ±0.2mm or ±0.3mm to ensure assembly accuracy. Thread specifications adopt standard M8×0.35 and M12×0.5, fully compatible with mainstream M12 mount camera modules on the market. The optical surface adopts multi-layer coating technology, which lays a solid foundation for the normal operation of the matched M12 Lens Ir Cut Filter.

The supporting M12 Lens Ir Cut Filter is designed for day-night dual-mode imaging. It uses dual-filter switching technology: the infrared cut filter works in sufficient daylight to block infrared light, correct color deviation and restore true color images; when ambient light dims at night, the filter automatically switches to a full-spectrum permeable sheet to fully utilize infrared light, improving low-light imaging performance and reducing image noise. TOWIN’s M12 Lens Ir Cut Filter is customized for miniature M12 Lens, with ultra-thin design that does not affect the lens’ optical path, and its spectral parameters are precisely calibrated to match the multi-coating lens, avoiding ghosting, halo and blurring.

Outstanding Characteristics of TOWIN M12 Lens and M12 Lens Ir Cut Filter

TOWIN stands out in the competitive industrial lens industry relying on professional R&D capabilities, strict production standards and customized service. First of all, its M12 Lens product line is extremely complete, including low-distortion lens, fisheye lens, wide-angle lens, low-light sensitive lens, pinhole lens and automotive special lens, covering machine vision, video surveillance, intelligent traffic, on-board monitoring and other scenarios. All lenses undergo strict optical testing before leaving the factory, with stable resolution up to 5MP and clear imaging across the entire field of view.

Secondly, the matching M12 Lens Ir Cut Filter has excellent durability and switching sensitivity. The built-in miniature drive structure responds quickly to light changes, realizing seamless switching between day and night modes without jamming or delayed action. Compared with ordinary filters, TOWIN’s products use high-purity optical glass, which has strong anti-aging, anti-scratch and anti-high and low temperature capabilities, and can work stably for a long time in harsh outdoor and industrial environments. In addition, the integrated design of M12 Lens and M12 Lens Ir Cut Filter simplifies the camera assembly process, shortens the production cycle of terminal equipment and reduces the overall use cost for customers.

As a professional optical lens supplier in China, TOWIN supports personalized design and mass production. Whether customers need standard M12 Lens models or modified filters for special scenarios, the team can provide targeted solutions and complete rapid delivery. You can learn more about the full range of lens products through the official website https://www.towinlens.com/ to obtain detailed parameter sheets and sample support.

Frequently Asked Questions

What scenarios are M12 Lens and M12 Lens Ir Cut Filter mainly suitable for?

They are widely used in PCB board cameras, home surveillance cameras, network IP cameras, small industrial vision equipment and vehicle-mounted monitoring cameras, especially suitable for miniaturized imaging equipment that requires day-night monitoring.

Will the M12 Lens Ir Cut Filter affect the original imaging effect of the M12 Lens?

TOWIN’s filters are optically calibrated for its own M12 Lens. Under normal use, they will not reduce sharpness or cause distortion. The multi-coating matching design can instead optimize light transmission and color restoration ability.

How to judge whether the M12 Lens Ir Cut Filter is working normally?

Observe the imaging state under strong light and dark light respectively. In bright environments, the image presents natural colors; in dark environments, the filter switches automatically, the screen brightness increases significantly, and no color cast occurs, which means the filter works normally.

Is TOWIN’s M12 Lens compatible with third-party M12 mount cameras?

All TOWIN M12 Lens adopt the international standard M12×0.5 thread interface, which is compatible with most mainstream M12 mount CCD and CMOS cameras on the market.

How long is the service life of TOWIN’s M12 Lens Ir Cut Filter?

After long-term aging tests, the normal switching life of the filter exceeds hundreds of thousands of times. With daily indoor and outdoor use, it can maintain stable performance for more than 3 years.

Overall, the combination of TOWIN’s high-quality M12 Lens and professional M12 Lens Ir Cut Filter is a cost-effective optical solution for modern miniature imaging equipment. With complete specifications, reliable performance and thoughtful after-sales service, it can fully meet the diverse needs of industrial vision and security monitoring fields. Whether for bulk procurement or sample trial, TOWIN can provide professional technical support and efficient logistics services.

TOWINLENS - Professional Industrial Lenses Manufacturer | https://www.towinlens.com/