

6mm CS-mount IR corrected CCTV lens for 1/2.5″ sensors, featuring 56° horizontal FOV, 3MP resolution, F1.8 aperture, and 0.1m M.O.D.
CS06012505618 CCTV lens 1/2.5″ 6mm low light F1.8 CS-mount IR Corrected Lens fixed Iris day night surveillance
| IMAGE FORMAT | 1/2.5″ |
| FOCAL LENGTH | 6mm |
| H F.O.V. | 56° |
| RESOLUTION | 3MP |
| APERTURE | F1.8 |
| MOUNT | CS |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| M.O.D. | 0.1m |
| TTL | 22.23mm |
| IR CORRECTED | Yes |
This 6mm CS-mount IR corrected CCTV lens is designed for 1/2.5″ image sensors and provides a 56° horizontal field of view for stable, medium-angle surveillance imaging. With 3MP resolution, an F1.8 aperture, fixed focal length, manual focus, and IR correction, it is well suited for security cameras and monitoring systems requiring reliable imaging across visible and near-infrared illumination.
The 6mm focal length and 56° horizontal FOV provide a balanced viewing angle for fixed-position surveillance. Unlike ultra-wide lenses designed to maximize scene coverage, this configuration is better suited to locations where the camera needs a more controlled field of view while maintaining useful detail on subjects within the monitored area.
Designed for fixed-position CCTV and professional security monitoring applications.
Typical installation environments include building entrances, corridors, reception areas, retail spaces, offices, access points, and other locations where the monitored area has a defined viewing direction.
The IR Corrected optical design is an important feature for security systems that operate with infrared illumination. When a camera changes from visible-light operation to IR-assisted nighttime imaging, optical wavelength shifts can affect focus in conventional lenses. IR correction helps the lens maintain more consistent imaging performance across these operating conditions.
This makes the lens particularly suitable for CCTV systems equipped with IR LEDs or other near-infrared illumination sources.
For applications requiring additional optical configurations, TOWIN’s CS-Mount Lenses portfolio provides different focal lengths and surveillance-oriented lens options.
The 56° horizontal FOV offers a practical balance between coverage and scene concentration for entrances, doors, reception desks, elevators, and access-control areas. The fixed 6mm focal length provides predictable framing, which is useful when a camera is installed at a known observation position.
The 0.1m M.O.D. also gives the lens flexibility for relatively close-range observation, making it suitable for compact monitoring spaces where the camera may be positioned near the target area.
With an F1.8 aperture and 3MP resolution, this lens can be used in indoor commercial surveillance environments where lighting conditions may change throughout the day. Potential installations include retail stores, offices, commercial buildings, corridors, and restricted-access areas.
The fixed iris and manual focus configuration are appropriate for installations where the camera position and operating environment are established during deployment.
This lens can be considered for:
When selecting a lens for a specific camera, installation distance, sensor format, and required field of view should be evaluated together. TOWIN’s Lens Selection Guide provides additional guidance for matching lens specifications to camera requirements.
Q: What type of camera is this 6mm CS-mount lens designed for?
A: This lens is designed for CS-mount camera systems using 1/2.5″ image sensors, with primary applications in CCTV, security surveillance, and fixed-position monitoring.
Q: What field of view does the 6mm lens provide?
A: The lens provides a 56° horizontal field of view, offering controlled medium-angle coverage for entrances, corridors, indoor areas, and other fixed surveillance scenes.
Q: Is this a fixed focal length CCTV lens?
A: Yes. It features a fixed 6 mm focal length and fixed zoom configuration, delivering consistent framing after installation.
Q: What is the advantage of an IR corrected CCTV lens?
A: IR correction helps reduce focus shifts caused by changes in illumination wavelength, allowing more consistent imaging when a surveillance camera operates between visible light and near-infrared illumination.
Q: Is this lens suitable for night vision cameras?
A: Yes. The IR corrected design makes it suitable for CCTV systems using near-infrared illumination, including security cameras with IR LEDs for nighttime monitoring.
Q: What is the minimum object distance of this lens?
A: With a specified M.O.D. of 0.1 m, the lens supports relatively close‑range monitoring applications.
Q: Does this lens support 3MP cameras?
A: Yes. The specified optical resolution is 3MP, making it suitable for compatible 3MP security and surveillance camera systems.
Q: How should I select the correct focal length for my CCTV camera?
A: Focal length should be selected according to the camera sensor size, required field of view, installation distance, and desired subject framing. TOWIN’s FOV Calculator can help evaluate the relationship between these parameters.
If your project requires a different focal length, sensor format, FOV, aperture, distortion specification, IR performance, or mechanical configuration, contact TOWIN Lens for optical specification evaluation and customized lens solutions.
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| H. F.O.V. | |
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| IRIS | |
| MOUNT | |
| RESOLUTION | |
| T.T.L.(mm) | |
| FEATURE | |
| MARK |
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