

1/1.8″ 3.7–16mm 8MP CS-Mount motorized zoom lens with F1.5 aperture, 104°–28° H FOV, DC auto iris, IR correction, and 1.5m MOD.
CS371611815A8 is 1/1.8″ 3.7-16mm 8MP CS-Mount IR Corrected Zoom Lens, F1.5 aperture, low-distortion, high resolution 8-Megapixel, IR-corrected, DC Auto-iris.
| IMAGE FORMAT | 1/1.8″ |
| FOCAL LENGTH | 3.7-16mm |
| H F.O.V. | 104°~28° |
| RESOLUTION | 8MP |
| APERTURE | F1.5 |
| DISTORTION | <-47%(3.7mm) |
| DISTORTION | <-1.8%(16mm) |
| MOUNT | CS |
| B.F.L. | 7.5~18.7mm |
| IRIS | DC Auto |
| FOCUS | Motorized |
| ZOOM | Motorized |
| M.O.D. | 1.5m |
| IR | Corrected |
This 1/1.8″ 3.7–16mm CS-Mount motorized zoom lens combines 8MP resolution, a fast F1.5 aperture, and a 104°–28° horizontal field of view for flexible wide-area and telephoto imaging. With DC auto iris, motorized focus and zoom, IR-corrected optics, and a 1.5m minimum object distance, it is designed for smart security, industrial monitoring, and intelligent vision systems requiring remote optical control.
This 8MP CS-Mount zoom lens is designed for imaging systems that require both broad scene coverage and adjustable magnification. At 3.7mm, it provides a 104° horizontal field of view on a 1/1.8″ sensor, making it suitable for wide-area observation. At 16mm, the horizontal FOV narrows to 28°, allowing the camera to concentrate on more distant or specific targets.
The fixed F1.5 aperture provides a relatively fast optical configuration for applications where available light may vary. Combined with DC auto iris, the lens can automatically regulate incoming light according to camera exposure requirements, reducing the need for manual iris adjustment.
The lens also incorporates motorized focus and zoom, making it suitable for installations where the camera or optical system must be adjusted remotely. Its IR-corrected design further supports systems using near-infrared illumination for day-and-night or low-light imaging.
The distortion specification varies substantially across the zoom range, from less than -47% at 3.7mm to less than -1.8% at 16mm. Therefore, the lens is primarily suited to wide-area observation, monitoring, and target acquisition, rather than precision geometric measurement at the widest setting.
Designed for smart security and industrial monitoring applications requiring high-resolution imaging, motorized optical control, and IR-corrected performance.
Smart Security Monitoring
The 3.7–16mm zoom range allows a single camera to provide broad situational awareness and narrower target observation. Motorized zoom and focus are useful for installations where optical adjustment needs to be performed remotely.
Large-Area Industrial Monitoring
The 104° wide-angle setting can cover large industrial areas, equipment zones, entrances, or production environments, while the longer focal lengths provide more concentrated views of selected equipment or targets.
Day-and-Night Imaging
The IR-corrected design supports systems that combine visible-light and near-infrared illumination, helping maintain useful focus across different imaging conditions.
Intelligent Vision Systems
The 8MP resolution and electronically controlled focus/zoom make this lens suitable for intelligent camera platforms that need adjustable optical framing according to scene conditions.
For application-specific solutions, explore TOWIN’s Smart Security solutions, Machine Vision solutions, and Smart Traffic solutions.
Q: What focal-length range does this CS-Mount lens provide?
A: The lens provides a 3.7–16mm motorized zoom range, allowing the camera to switch between wide-area coverage and narrower target views.
Q: What is the horizontal field of view?
A: On a 1/1.8″ sensor, the specified horizontal FOV ranges from 104° at 3.7mm to 28° at 16mm.
Q: What resolution does this lens support?
A: The lens is specified at 8MP resolution and is designed for compatible 1/1.8″ high-resolution camera systems.
Q: Does this lens have IR correction?
A: Yes. The optical design is specified as IR corrected, making it suitable for systems using visible and near-infrared illumination.
Q: What type of iris does the lens use?
A: It uses a DC auto iris, allowing the camera system to regulate the aperture according to changing illumination conditions.
Q: Are the zoom and focus motorized?
A: Yes. Both zoom and focus are specified as motorized, enabling remote adjustment through a compatible camera control system.
Q: Is this a low-distortion lens?
A: It should not be classified primarily as a low-distortion lens. The specified distortion is less than -47% at 3.7mm, although it improves to less than -1.8% at 16mm.
Q: What is the minimum object distance?
A: The specified M.O.D. is 1.5m, so the lens is intended for applications where the target is positioned at approximately 1.5m or farther from the optical system.
When selecting a motorized zoom lens, sensor format, focal-length range, field of view, aperture, distortion, and working distance should be evaluated together. TOWIN’s Lens Selection Guide provides practical guidance for matching optical specifications with camera requirements.
For understanding field of view and focal length, visit the Lens Basics section or use the FOV Calculator. For more information about optical distortion, see the Distortion Guide.
You can browse additional options in the CS-Mount Lenses category. For OEM, ODM, or application-specific optical requirements, contact TOWIN Lens.
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