CCTV Lens – CCL122812AMPC

CCL122812AMPC est un objectif CCTV à zoom manuel 2,8-12 mm, objectif à monture C 1/2″ à 1/2,3″, iris automatique DC, F1.6, résolution de 3 mégapixels, correction IR.

2.8-12mm C-Mount IR Corrected CCTV Zoom Lens

This 2.8–12mm C-Mount IR corrected zoom lens is designed for 1/2″ and 1/2.3″ sensors and 3MP cameras requiring flexible wide-to-tele field-of-view control. With 100°–31° horizontal FOV, DC auto iris, manual focus and IR correction, it is well suited for CCTV, industrial monitoring and intelligent security imaging systems.

For additional information about selecting a compatible sensor and lens combination, see the Sensor Guide and Lens Selection Guide.

Product Core Highlights

• 2.8–12mm zoom range for flexible scene framing.
• 100°–31° horizontal FOV from wide-area to focused coverage.
• IR corrected optical design for consistent imaging across visible and near-infrared wavelengths.
• DC auto iris for automatic aperture adjustment in changing illumination.
• C-Mount compatibility for professional industrial and security camera systems.

The combination of a wide 2.8mm setting and longer 12mm setting allows a single C-Mount zoom lens to adapt to different monitoring distances and scene sizes. Its IR-corrected design further supports systems that switch between daytime visible-light imaging and near-infrared illumination.

C-Mount IR Corrected CCTV Zoom Lens Applications

Core Application Scenes

This 2.8–12mm IR corrected industrial lens is designed for monitoring systems where the required field of view changes according to the installation location or surveillance target. At the 2.8mm end, the lens provides a broad 100° horizontal FOV, making it suitable for monitoring entrances, production areas, corridors and other relatively large scenes.

When the focal length is adjusted toward 12mm, the horizontal FOV narrows to 31°, allowing the camera to concentrate on a more specific area or a target positioned farther from the camera. This wide-to-narrow coverage makes the lens useful for security systems where the same camera platform may need to accommodate different installation distances.

The IR corrected optical design is an important advantage for day-and-night imaging. When an imaging system uses near-infrared illumination at night, uncorrected lenses can experience focus shifts between visible and IR wavelengths. IR correction helps maintain more consistent focus across these operating conditions, supporting stable image acquisition for continuous surveillance.

The DC auto iris further adapts the amount of light entering the camera as scene illumination changes. This is useful for outdoor or semi-outdoor monitoring environments where lighting can vary significantly throughout the day.

The 0.2m minimum object distance also provides flexibility for relatively close monitoring applications, while the manual zoom and focus controls allow installers to establish the desired framing during system setup.

Designed for day-and-night CCTV surveillance, industrial monitoring and variable-distance security imaging applications.

Compatible Device List

• 1/2″ and 1/2.3″ Cameras: Designed for cameras using compatible 1/2″ or 1/2.3″ image sensors.
• C-Mount CCTV Cameras: Suitable for professional security and monitoring cameras equipped with a C-Mount interface.
• Day-and-Night Surveillance Systems: The IR-corrected design supports applications using visible and near-infrared illumination.
• Industrial Monitoring Cameras: Suitable for monitoring production areas, equipment zones and facility interiors.
• Entrance & Access Monitoring: The wide 2.8mm setting can provide broad coverage of entrances and access areas.
• Longer-Distance Observation: The 12mm setting provides a narrower FOV for more concentrated imaging.
• Variable-Lighting Environments: DC auto iris helps adapt the lens to changing illumination levels.

For intelligent security applications, explore Smart Security Solutions. If the lens needs to be adapted to a particular camera housing, sensor or mechanical configuration, contact Towin Lens for application-specific optical support.

Frequently Asked Questions

Q: What sensor sizes are compatible with this C-Mount zoom lens?
A: This lens is designed for 1/2″ and 1/2.3″ image sensors and supports 3MP resolution according to the supplied specifications.

Q: What is the focal length range?
A: The lens provides a 2.8–12mm manual zoom range, allowing the field of view to be adjusted according to the monitoring area and camera installation distance.

Q: What is the horizontal field of view?
A: The horizontal FOV ranges from 100° at the wide end to 31° at the telephoto end, providing flexible scene coverage.

Q: What does IR Corrected mean?
A: IR correction is designed to reduce focus changes between visible light and near-infrared wavelengths. This is particularly useful for cameras that use IR illumination for nighttime or low-light surveillance.

Q: Does this lens have automatic iris control?
A: Yes. The lens uses a DC Auto Iris mechanism, which can automatically adjust the aperture according to changes in scene illumination.

Q: Is this lens suitable for CCTV applications?
A: Yes. Its 2.8–12mm zoom range, DC auto iris, C-Mount interface and IR-corrected optical design make it well suited to various professional CCTV and security monitoring systems.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, allowing the lens to be used for relatively close monitoring and imaging applications.

Q: Can the lens be used for industrial monitoring?
A: Yes. The flexible zoom range allows system integrators to adjust coverage for different production areas, equipment zones and monitoring distances.

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