C281212M2

This is IR corrected C mount lens for 1/2″ CCTV camera.  And it is vari-focal 2.8-12mm with manual iris and 2megapixel resolution.

Product Description

The 2.8-12mm IR corrected C mount lens is designed for security surveillance, industrial imaging and professional camera systems requiring flexible field-of-view adjustment. Supporting 1/2″ image formats and 2MP resolution, this lens provides a horizontal field of view ranging from 100° to 31°, allowing users to switch between wide-area monitoring and more focused scene observation.

With an F1.6 aperture, the lens provides strong light-gathering capability for reliable image performance under different lighting conditions. The manual iris, focus and zoom controls allow users to fine-tune the optical settings according to specific installation distances and monitoring requirements.

The IR-corrected optical design helps maintain consistent focus between visible and infrared illumination, making the lens suitable for day-and-night surveillance applications. With a 0.1m minimum object distance and standard C-Mount interface, it offers flexible integration for professional camera systems.

Key Features

2.8-12mm Flexible Varifocal Range

The 2.8-12mm focal length range allows users to adjust the field of view according to different monitoring distances and scene coverage requirements.

100°-31° Horizontal Field of View

The wide FOV range supports both broad-area monitoring and narrower views, providing greater flexibility than fixed focal length lenses.

2MP Imaging Performance

Supporting 2MP resolution, the lens provides clear and reliable image output for security, industrial and monitoring applications.

F1.6 Large Aperture

The F1.6 aperture provides strong light-gathering capability, helping cameras maintain brighter images in low-light and variable illumination environments.

IR-Corrected Optical Design

The IR-corrected design helps minimize focus shift between visible and infrared wavelengths, supporting more consistent imaging performance for day-and-night surveillance.

Flexible Manual Adjustment

Manual iris, focus and zoom controls allow users to fine-tune the lens according to different camera configurations and operating environments.

Standard C-Mount Interface

The C-Mount design provides flexible compatibility with professional security cameras, industrial cameras and other imaging systems.

Applications

Security Surveillance Cameras

This 2.8-12mm C-Mount varifocal lens is suitable for CCTV and professional surveillance systems requiring adjustable viewing angles and flexible monitoring coverage.

Day-and-Night Security Systems

The IR-corrected optical design supports surveillance applications using infrared illumination, helping maintain consistent image focus during nighttime operation.

Industrial Monitoring

The adjustable focal range makes the lens suitable for industrial cameras used for equipment monitoring, process observation and visual inspection.

Commercial Security Systems

The 100°-31° FOV range provides flexibility for retail stores, entrances, warehouses and other commercial environments requiring different monitoring distances.

Machine Vision Applications

The lens can be used in selected industrial vision systems where adjustable focal length and flexible scene coverage are required.

Why Choose TOWIN as Your Industrial Lens Manufacturer?

TOWIN provides professional optical solutions for C-Mount lenses, varifocal lenses, IR-corrected lenses and customized industrial imaging systems. With optical design expertise, precision manufacturing capability and experience in security and industrial optics, TOWIN supports customers from optical development through mass production.

Frequently Asked Questions

Q: What applications is the 2.8-12mm C-Mount varifocal lens suitable for?

A: The 2.8-12mm C-Mount varifocal lens is suitable for security surveillance, day-and-night monitoring, industrial imaging, commercial security and selected machine vision applications requiring adjustable field of view.

Q: What is the advantage of a 2.8-12mm varifocal lens?

A: A 2.8-12mm varifocal lens allows users to adjust the viewing angle from wide-area coverage to a narrower field of view, providing greater flexibility for different monitoring distances and installation environments.

Q: What sensor size is compatible with this C-Mount lens?

A: This lens supports 1/2″ image formats and uses a standard C-Mount interface for compatible professional camera systems.

Q: What is the advantage of the F1.6 aperture?

A: The F1.6 aperture provides strong light-gathering capability, helping cameras achieve brighter and clearer images in low-light and changing illumination conditions.

Q: Why is IR correction important for surveillance lenses?

A: IR correction helps reduce focus shift between visible light and infrared wavelengths, allowing the lens to maintain more consistent image focus during both daytime and nighttime operation.

Q: Can the iris, focus and zoom be manually adjusted?

A: Yes. The lens features manual iris, manual focus and manual zoom, allowing users to fine-tune the optical performance according to different camera configurations and application requirements.

Q: What is the minimum object distance of this lens?

A: The minimum object distance is 0.1m, allowing the lens to support relatively close-range imaging applications.

Q: Can TOWIN customize C-Mount varifocal lenses for specific projects?

A: Yes. TOWIN provides OEM and ODM customization services, including optical optimization, mechanical adjustments and customized varifocal lens solutions for different camera systems.

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