CCTV Lens – CCL127040MPCS

CCL127040MPCS is 4mm Custom focal length CCTV lens, 1/2.7″ wide-angle lens, F1.6 aperture CS mount lens, megapixel resolution, IR corrected.

For additional fixed focal and wide-angle configurations, engineers can review Towin’s complete CS-Mount Lenses range.

Megapixel 4mm CS-Mount Wide Angle IR Corrected CCTV Lens

This megapixel 4mm CS-mount wide angle CCTV lens delivers a 79° horizontal field of view, F1.6 aperture, and IR-corrected optical performance for general-purpose surveillance imaging. Its compact fixed focal configuration is designed for CS-mount CCTV cameras that require broad scene coverage and stable framing.

Product Core Highlights

• 4mm fixed focal length provides stable framing for dedicated surveillance cameras.
• 79° horizontal FOV delivers broad scene coverage from a fixed camera position.
• Megapixel resolution supports higher-detail CCTV imaging than standard VGA configurations.
• F1.6 aperture provides a relatively bright optical configuration for indoor security environments.
• IR-corrected optics support consistent focus across visible and near-infrared wavelengths.

Applications & Compatible Devices

Core Application Scenes

This 4mm CS-mount wide angle CCTV lens is designed for surveillance systems that need to balance broad scene coverage with megapixel-level imaging. Its 79° horizontal field of view allows the camera to capture a substantial portion of the surrounding environment without using an extreme fisheye perspective.

It is particularly suitable for retail stores, office entrances, reception areas, indoor corridors, small commercial spaces, and general security monitoring where operators need sufficient scene awareness while retaining more image detail than standard VGA CCTV systems.

The 4mm fixed focal configuration is appropriate for installations where the camera location and coverage requirements are already established. Manual focus allows the installer to set the optical focus during commissioning, after which the lens maintains a stable viewing configuration.

The combination of a F1.6 aperture and IR-corrected optics also makes this lens suitable for day/night security cameras that may operate under changing illumination or use near-infrared lighting.

For selecting the appropriate focal length and sensor combination, engineers can use Towin’s Lens Selection Guide.

Compatible Device List

• 1/2.7″ megapixel CCTV cameras: Designed for compact security cameras using 1/2.7″ image sensors and megapixel imaging.
• CS-mount camera systems: Compatible with camera bodies using the CS mounting interface.
• Retail surveillance cameras: Suitable for monitoring shop floors, checkout areas, entrances, and customer spaces.
• Office and commercial security cameras: Useful for reception areas, corridors, meeting areas, and other indoor locations.
• Entrance monitoring systems: The 79° FOV provides broad coverage around doors and access points.
• Day/night CCTV cameras: IR correction supports systems using near-infrared illumination for nighttime operation.

For integrated security deployments, this lens can be considered for Towin’s Smart Security solutions.

Optical Selection Considerations

The 4mm focal length and 79° horizontal FOV provide a useful balance between wide-area coverage and a conventional perspective. It is wider than standard medium-focal CCTV lenses while avoiding the extreme field of view normally associated with fisheye optics.

The actual coverage depends on the sensor’s physical dimensions and camera installation distance. Engineers can use Towin’s Focal Length Calculator to estimate the focal length required for a particular scene width and working distance.

No distortion specification is provided for this model. Therefore, it should not be marketed as a Low Distortion Lens without additional optical test data. For systems where geometric distortion is an important selection criterion, the Distortion Guide can be used as a reference.

Designed for megapixel wide-angle CCTV surveillance, retail security, office monitoring, entrance coverage, and day/night camera systems requiring a 4mm CS-mount lens.

Frequently Asked Questions

Q: What type of lens is this 4mm CS-mount lens?
A: It is a megapixel fixed focal CCTV lens featuring a 4mm focal length, CS mount, F1.6 aperture, manual focus, and IR-corrected optical performance.

Q: What is the horizontal field of view of this lens?
A: The specified horizontal field of view is 79° when used with the stated 1/2.7″ image format.

Q: Is this a wide angle lens?
A: Yes. The 79° horizontal field of view provides broad scene coverage and makes the lens suitable for wide-angle CCTV surveillance applications.

Q: Is this a fisheye lens?
A: It is not classified as a fisheye lens based on the supplied specifications. The 79° horizontal FOV is wide, but there is no information indicating an extreme fisheye optical design.

Q: Is the focal length adjustable?
A: No. The lens uses a fixed 4mm focal length. Focus is manually adjusted during installation.

Q: What does megapixel resolution mean for this lens?
A: The lens is specified as a megapixel lens, making it suitable for CCTV camera systems requiring more image detail than standard VGA-resolution surveillance.

Q: What does IR corrected mean?
A: IR correction is designed to reduce focus shifts between visible and near-infrared wavelengths, helping maintain more consistent focus when infrared illumination is used.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.1m, allowing the lens to focus on relatively close subjects when required by the camera installation.

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