CCTV Lens – CCL1350M

CCL1350M is CCTV lens 1/3″ 50mm lens, F1.8 CS mount lens with Low F-number (Fast Lenses), manual iris and focus, fixed zoom, VGA resolution.

50mm CS-Mount Fixed Focal CCTV Lens

This 50mm CS-mount fixed focal CCTV lens is designed for applications that require a narrow field of view and focused observation of distant or specific targets. With a 5.5° horizontal field of view, F1.8 aperture, and manual iris and focus control, it provides a practical optical solution for surveillance systems and camera platforms using a 1/3″ image format. The CS mount makes it suitable for compatible CCTV camera systems where flexible manual adjustment and targeted viewing are required.

As a CS-mount lens, it can be integrated into a range of CCTV imaging configurations. Its fixed 50mm focal length is particularly suitable when a narrow viewing angle is preferred over wide-area coverage. For projects that require help selecting the right focal length, users can also refer to TOWIN’s Lens Selection Guide.

CS-Mount CCTV Lens Core Highlights

• 50mm Fixed Focal Length: Provides a narrow viewing angle for targeted observation rather than broad-area surveillance.
• 5.5° Horizontal FOV: Helps concentrate the camera’s field of view on specific distant or localized targets.
• F1.8 Aperture: Offers a relatively bright optical configuration for CCTV imaging applications.
• Manual Iris and Focus: Allows installers to adjust optical performance according to the actual scene and camera position.
• CS-Mount Compatibility: Designed for camera systems equipped with a standard CS lens interface.

CS-Mount CCTV Lens Applications

The narrow 5.5° horizontal field of view makes this lens particularly useful when the imaging system needs to concentrate on a defined target instead of covering a large area. The 50mm focal length can help CCTV designers achieve more focused observation in suitable installation environments.

Designed for targeted CCTV surveillance applications.

• Fixed-position CCTV monitoring
• Longer-distance observation of defined areas
• Entrance and access-point monitoring
• Corridor and passageway observation
• Targeted security monitoring
• Industrial or commercial surveillance cameras using a CS mount

The lens uses a CS mount and is compatible with camera systems designed for a 1/3″ image format. Manual iris and focus adjustment also provide installers with direct control during system setup. For additional surveillance-oriented lens options, explore TOWIN’s Fixed Focal Lens range or the complete CS-Mount Lens collection.

Why Choose a 50mm Fixed Focal CCTV Lens?

Choosing a 50mm focal length can be useful when a surveillance system needs a narrower viewing angle than a conventional wide-angle CCTV lens can provide. Instead of prioritizing broad scene coverage, this lens is designed around focused observation. The 5.5° horizontal FOV helps define a relatively narrow viewing area, making focal length selection especially important during CCTV system design.

Before installation, the required target distance, camera position, sensor format, and desired viewing area should be evaluated together. TOWIN’s FOV Calculator can help users estimate the relationship between lens focal length, sensor format, and field of view.

Frequently Asked Questions

Q: What type of lens is this?
A: This is a 50mm CS-mount fixed focal CCTV lens designed for cameras using a 1/3″ image format.

Q: What is the horizontal field of view?
A: The horizontal field of view is 5.5°, providing a narrow viewing angle for targeted observation.

Q: What camera format is this lens designed for?
A: The specified image format is 1/3″.

Q: Does this lens have adjustable focus?
A: Yes. The focus is manual, allowing the installer to adjust focus during setup.

Q: Is the iris adjustable?
A: Yes. The lens uses a manual iris, allowing the aperture to be adjusted according to the installation environment.

Q: Is the focal length variable?
A: No. The lens has a fixed 50mm focal length rather than a variable zoom range.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.4m.

Q: Where can I find more information about choosing a CCTV lens?
A: You can review TOWIN’s Lens Selection Guide or contact the TOWIN team through the Contact page for project-specific lens selection support.

Related Lens Selection Resources

For more information about CCTV optics and lens selection, visit TOWIN’s Lens Basics and Optical Design resources. These resources can help system designers better understand focal length, field of view, aperture, and other important optical parameters.

Online contact