CS-Mount Lens – CCL118032MPCS

CCL118032MPCS CCTV lens 1/1.8″ 3.2mm day night IR corrected CS-mount lens 12MP IMX226 F2.0 fixed Iris

3.2mm CS-Mount 12MP Ultra Wide Angle IR Corrected CCTV Lens

The 3.2mm CS-mount CCTV lens is designed for 1/1.8″ sensors and provides 12MP high-resolution imaging with an ultra-wide 129° horizontal field of view. With a 153° diagonal FOV, F2.0 fixed aperture, and IR-corrected optical design, this lens is well suited for surveillance systems that need to capture a large area from a relatively short camera-to-scene distance.

CS-Mount Lens Core Highlights

• 12MP High Resolution – Supports detailed image capture for high-resolution surveillance cameras.
• 129° Horizontal FOV – Provides extremely broad horizontal coverage for area monitoring from a relatively short distance.
• 153° Diagonal FOV – Captures a very large portion of the surrounding scene.
• F2.0 Fixed Aperture – Provides a stable optical configuration for continuous surveillance applications.
• IR Corrected Optical Design – Supports day/night CCTV systems using visible and near-infrared illumination.

CS-Mount Lens Applications

Core Application Scenes

The defining characteristic of this lens is its combination of a 3.2mm focal length and 129° horizontal field of view. This configuration allows a camera to capture a very broad scene without requiring an extremely long camera-to-target distance.

It is particularly suitable for surveillance locations where the camera needs to cover a large area from a fixed position, such as building entrances, retail interiors, reception areas, corridors, parking areas, facility rooms, and wide indoor monitoring zones.

The 12MP resolution adds value in applications where broad coverage alone is not sufficient and the captured image also needs to retain a high level of detail. This makes the lens suitable for high-resolution IP cameras and professional CCTV platforms using 1/1.8″ sensors.

Designed for ultra-wide area surveillance applications, this lens is a strong option for fixed-position security cameras where maximizing scene coverage is more important than minimizing geometric distortion.

Ultra-Wide Indoor Surveillance

The 129° horizontal FOV makes this lens especially useful for spaces where a conventional medium-angle lens may leave important areas outside the frame.

Potential installation environments include:

• Retail stores and commercial spaces
• Building entrances and lobbies
• Reception and waiting areas
• Corridors and passageways
• Parking areas
• Warehouses
• Facility rooms
• Security monitoring zones
• Large indoor activity areas

The short 3.2mm focal length allows the camera to maintain extensive coverage even when installation space limits the distance between the camera and the monitored area.

For applications requiring an extremely broad viewing angle, engineers can also compare available Wide Angle Lenses from TOWIN.

High-Resolution Wide-Area Monitoring

This lens combines an ultra-wide field of view with 12MP resolution, making it suitable for systems that need to monitor large areas while retaining detailed image information.

The 1/1.8″ image format provides compatibility with a range of high-resolution security camera platforms. When selecting a camera and lens combination, engineers should verify sensor format and image-circle compatibility. TOWIN’s Sensor Guide provides additional information for sensor and lens matching.

For focal length and coverage calculations, the FOV Calculator can also be used to evaluate how different lens configurations affect the monitored scene.

Day & Night CCTV Imaging

The IR-corrected design makes this lens suitable for surveillance cameras operating in both daylight and low-light environments with near-infrared illumination.

When an IR-equipped camera changes from visible-light imaging to nighttime IR illumination, optical focus can shift if the lens is not properly corrected for different wavelengths. An IR-corrected design helps maintain more consistent focus across these operating conditions.

This makes the lens appropriate for:

• 24/7 security cameras
• IR-illuminated IP cameras
• Building surveillance
• Indoor security monitoring
• Facility monitoring
• Nighttime area surveillance

Important Distortion Consideration

With a specified distortion of less than -64%, this lens should be positioned as an ultra-wide-angle coverage solution rather than a low-distortion lens.

The strong wide-angle optical configuration is intended to maximize the amount of scene captured. Therefore, applications requiring precise geometric measurement, dimensional inspection, or highly accurate spatial reconstruction should consider a different optical design.

Engineers evaluating distortion requirements can refer to TOWIN’s Distortion Guide before selecting the appropriate lens architecture.

Compatible Devices

This lens can be integrated into compatible:

• 1/1.8″ high-resolution CCTV cameras
• 12MP IP security cameras
• Fixed-position surveillance cameras
• Wide-area monitoring cameras
• Day/night security cameras
• IR-illuminated CCTV systems
• Commercial security camera platforms
• Building monitoring systems
• Indoor facility surveillance cameras

For other CS-mount solutions, explore TOWIN’s CS Mount Lenses.

Why Choose This 3.2mm CS-Mount Lens?

Frequently Asked Questions

Q: What sensor size is this 3.2mm lens designed for?
A: This lens is designed for 1/1.8″ image sensors and is suitable for compatible 12MP CCTV and IP camera systems.

Q: What is the horizontal field of view of this lens?
A: The lens provides a 129° horizontal field of view, 153° diagonal FOV, and 88° vertical FOV.

Q: Is this a wide-angle or ultra-wide-angle CCTV lens?
A: It is best positioned as an ultra-wide-angle CCTV lens because its 129° horizontal FOV provides exceptionally broad scene coverage.

Q: Is this lens a fisheye lens?
A: The supplied specifications do not identify it as a fisheye lens. Although its 153° diagonal FOV is very wide, the product should be categorized based on its specified optical design rather than FOV alone.

Q: Does this lens support 12MP cameras?
A: Yes. The lens is specified for 12MP resolution and is designed for compatible 1/1.8″ high-resolution camera systems.

Q: Is this lens suitable for day and night surveillance?
A: Yes. Its IR-corrected optical design makes it suitable for CCTV systems using near-infrared illumination for nighttime imaging.

Q: Is this a low-distortion lens?
A: No. With distortion specified at less than -64%, it should be marketed as an ultra-wide-angle coverage lens rather than a low-distortion lens.

Q: What applications are suitable for this 3.2mm lens?
A: It is suitable for wide-area surveillance including building entrances, retail spaces, corridors, parking areas, warehouses, facility monitoring, and other fixed-position CCTV applications requiring extensive scene coverage.

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