CCTV Lens – CCL130550FMPD

CCL130550FMPD is IR corrected CCTV lens (night vision), 1/3″ 5-50mm manual zoom lens, fixed aperture F1.6 φ14 Mount lens, 1.3-Megapixel resolution.

5-50mm φ14 IR Corrected Manual Zoom CCTV Lens

This 5-50mm IR corrected manual zoom CCTV lens is designed for compact surveillance camera systems requiring a wide 10× focal range in a small optical package. With 5-50mm focal length, 75.5° to 8.5° horizontal FOV, F1.6 aperture, 1.3MP resolution, and IR corrected optics, it provides flexible scene framing from wide-area monitoring to concentrated long-distance observation.

IR Corrected CCTV Lens Highlights at a Glance

• 5-50mm 10× manual zoom range provides broad focal-length flexibility in one compact lens.
• 75.5° to 8.5° horizontal FOV allows switching from wide-area observation to narrow target monitoring.
• F1.6 maximum aperture provides a bright optical configuration for variable surveillance lighting.
• IR corrected optical design supports visible and near-infrared imaging for day/night security systems.
• φ14 mounting configuration is suitable for compact camera and optical module integration.
• 0.3m M.O.D. supports relatively close-range focusing despite the extended 50mm focal length.

IR Corrected CCTV Lens Applications

Core Application Scenes

The main advantage of this 5-50mm manual zoom CCTV lens is its unusually broad focal-length range. A single lens can move from a 75.5° horizontal FOV at 5mm to an 8.5° horizontal FOV at 50mm, allowing the camera to adapt to different monitoring distances and target sizes.

At the 5mm wide end, the lens can cover relatively broad scenes such as entrances, indoor areas, commercial spaces, and general security zones. As the focal length increases, the field of view becomes progressively narrower, allowing the camera to concentrate on specific objects or distant areas.

This makes the lens particularly useful when the final surveillance framing needs to be adjusted during installation or when different monitoring distances may be encountered across a camera project.

Typical applications include:

• CCTV surveillance
• Commercial security monitoring
• Building and facility surveillance
• Entrance and access-point monitoring
• Parking-area observation
• Perimeter security
• Industrial facility monitoring
• Long-distance target observation
• Day/night surveillance systems
• Compact OEM camera modules

Designed for surveillance applications requiring a 10× manual zoom range, compact φ14 integration, and IR-corrected imaging across changing lighting conditions.

For intelligent surveillance applications, see Towin’s Smart Security solution.

10× Manual Zoom for Flexible Surveillance Coverage

The 5-50mm focal range is the defining optical feature of this lens.

A 10× manual zoom range gives installers considerably more flexibility than a conventional fixed focal lens. At the 5mm setting, the 75.5° horizontal FOV provides broad scene coverage. At 50mm, the horizontal FOV decreases to 8.5°, allowing the camera to concentrate on a much smaller portion of the scene.

This wide adjustment range can reduce the need to select different fixed focal lenses for different camera positions during system deployment.

The manual zoom mechanism is particularly useful for:

• Adjusting camera framing after installation
• Matching different camera-to-target distances
• Switching between general-area and target-focused monitoring
• Fine-tuning surveillance coverage during commissioning
• Supporting different installation locations with one lens design

When selecting the appropriate zoom range, the camera sensor, target size, working distance, required FOV, and installation height should be evaluated together.

Towin’s Lens Selection Guide provides additional information about focal length and field-of-view selection.

IR Corrected Design for Day/Night Imaging

This model is explicitly specified as IR Corrected, making it suitable for surveillance cameras that operate across visible and near-infrared wavelengths.

In day/night CCTV systems, the camera may use visible light during daytime operation and near-infrared illumination in low-light or nighttime conditions. Different wavelengths can produce focus shifts in optical systems that are not designed to compensate for chromatic focus differences.

An IR corrected lens is designed to reduce this focus variation, helping maintain more consistent focus when the camera transitions between visible and near-infrared imaging.

This characteristic makes the lens suitable for security systems requiring continuous operation under changing illumination.

For related optical products, see Towin’s IR Corrected Lens category.

F1.6 Aperture for Variable Lighting

The lens features a maximum F1.6 aperture, providing a relatively bright optical configuration for surveillance applications.

A larger aperture can allow more light to reach the camera sensor under equivalent conditions, which can be beneficial in indoor or low-illumination environments. However, actual image performance in low light also depends on the camera sensor, exposure settings, illumination, and image-processing system.

The fixed iris provides a consistent aperture configuration while simplifying the optical design for dedicated camera integration.

For additional information about optical characteristics and lens selection, see Towin’s Optical Design resources.

Frequently Asked Questions

Q: What type of lens is the 5-50mm model?
A: It is an IR corrected manual zoom CCTV lens with a 10× focal-length range from 5mm to 50mm.

Q: What is the horizontal field of view?
A: The horizontal FOV ranges from 75.5° at the 5mm setting to 8.5° at the 50mm setting.

Q: Is this a fixed focal lens?
A: No. It is a manual zoom lens with an adjustable focal length from 5mm to 50mm.

Q: What makes this lens suitable for day/night CCTV?
A: The lens is specified as IR corrected, helping maintain more consistent focus when the camera operates across visible and near-infrared wavelengths.

Q: What is the mount specification?
A: The lens uses a φ14 mounting configuration. It should therefore be matched with a compatible camera housing or optical module rather than assuming standard C or CS mounting.

Q: What is the maximum aperture?
A: The maximum aperture is F1.6, while the iris is fixed.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.3m.

Q: What applications are suitable for this lens?
A: Typical applications include CCTV surveillance, commercial security, perimeter monitoring, facility observation, and compact day/night camera systems requiring a broad manual zoom range.

Related Products & Resources

For CCTV and variable focal-length applications, Towin provides additional products and technical resources:

• Products — explore Towin’s complete lens portfolio.
• IR Corrected Lens — explore IR corrected optical solutions.
• CS-Mount Lenses — compare standard CS-mount surveillance lenses when a CS interface is required.
• Smart Security — learn about optical solutions for intelligent security applications.
• Lens Selection Guide — review the key parameters used when selecting a camera lens.
• FOV Calculator — evaluate field-of-view requirements for different focal lengths and sensors.

For customized surveillance lens requirements, including different focal ranges, mechanical interfaces, aperture specifications, or optical performance targets, contact Towin through the Contact page.

Online contact