CCTV Lens – CCL120410MMPC

CCL120410MMPC is 4-10mm High-Resolution 2-Megapixel CCTV lens, 1/2″ 88°~45° manual zoom lens, F1.6 C-mount lens with Low F-number (Fast Lenses).

4-10mm C-Mount Manual Zoom CCTV Lens

This 4-10mm C-mount manual zoom CCTV lens is designed for surveillance camera systems that require flexible framing across different monitoring distances. With a 1/2″ image format, 2MP resolution, 88° to 45° horizontal FOV, and F1.6 aperture, it provides a versatile optical configuration for indoor security, commercial monitoring, and adjustable-view camera systems.

C-Mount CCTV Lens Highlights at a Glance

• 4-10mm manual zoom range allows flexible adjustment of the surveillance framing.
• 88° to 45° horizontal FOV covers both broad-area and more concentrated monitoring scenes.
• F1.6 maximum aperture provides a bright optical configuration for varying lighting conditions.
• 2MP resolution is suitable for standard high-definition surveillance camera systems.
• C-mount interface supports compatible professional camera and surveillance platforms.
• 0.2m M.O.D. enables relatively close-range monitoring.
• 84g compact housing with a Φ37.6 × 48.5mm dimension supports practical camera integration.

C-Mount CCTV Lens Applications

Core Application Scenes

This C-mount manual zoom lens is designed for surveillance installations where a fixed field of view may not provide enough flexibility. Its 4-10mm focal range allows the installer to manually adjust the viewing angle according to the camera’s mounting position and monitoring target.

At the 4mm wide-angle end, the lens provides an 88° horizontal FOV, making it suitable for monitoring relatively broad areas such as retail interiors, building entrances, corridors, reception areas, and general commercial spaces.

When adjusted toward the 10mm telephoto end, the horizontal FOV narrows to 45°. This allows the camera to concentrate more closely on specific areas such as doors, counters, access points, equipment zones, or other defined monitoring targets.

The F1.6 maximum aperture gives the lens a bright optical configuration, which can be useful in indoor environments where illumination changes throughout the day or where additional lighting is limited.

Typical applications include:

• Commercial CCTV surveillance
• Retail security monitoring
• Building entrance surveillance
• Indoor security cameras
• Corridor monitoring
• Access control observation
• Small-area outdoor surveillance
• Equipment and facility monitoring
• Adjustable-view security installations

Designed for CCTV applications requiring flexible manual framing, broad-to-focused scene coverage, and a bright F1.6 optical configuration.

For a broader range of surveillance optics, explore Towin’s C-Mount Lenses and related CCTV lens solutions.

Compatible Device List

The lens can be integrated into compatible:

• C-Mount CCTV Cameras: Designed for camera systems using a C-mount interface.
• Professional Box Cameras: Suitable for cameras requiring manually adjustable focal length and framing.
• Commercial Security Cameras: The 4-10mm range allows installers to adapt coverage to different installation locations.
• Indoor Surveillance Systems: The 4mm setting provides broad coverage for rooms, entrances, and commercial areas.
• Access Control Camera Systems: The longer focal length range can be used to concentrate the image on specific access points.
• Equipment Monitoring Cameras: The manual zoom function allows the framing to be adjusted according to equipment location.
• OEM Camera Assemblies: The compact 84g housing can be incorporated into dedicated camera systems where a C-mount interface is available.

For security projects requiring automatic iris control, Towin also offers DC Auto Iris Security Lenses.

Flexible 4-10mm Manual Zoom

The key advantage of this lens is its 4-10mm manual zoom capability.

A fixed focal lens requires the camera position or lens to be changed when the desired framing does not match the installation environment. A manual zoom lens provides greater flexibility during installation by allowing the operator to adjust the focal length and field of view after the camera has been positioned.

The 4mm setting provides an 88° horizontal FOV, which is useful for wider scene observation. At 10mm, the FOV reduces to 45° horizontal, providing more concentrated coverage of a defined monitoring area.

This makes the lens useful for surveillance projects where camera-to-target distances can vary between installations.

When selecting the appropriate focal range, engineers and installers should consider the sensor format, working distance, target size, and required field of view together. Towin’s Lens Selection Guide provides additional information about these parameters.

F1.6 Aperture for Variable Lighting

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

A larger aperture allows more light to reach the camera sensor compared with a smaller aperture under equivalent conditions. This can be useful in indoor surveillance environments where lighting may be uneven or where the camera needs to operate under relatively low illumination.

The manual iris also gives installers control over the aperture during camera setup. This can be useful when adapting the lens to different lighting environments and exposure requirements.

The actual low-light performance will depend on the complete camera system, including the image sensor, exposure settings, illumination, and image-processing capabilities.

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

Compact C-Mount Mechanical Configuration

The lens has a Φ37.6 × 48.5mm dimension and 84g weight, providing a relatively compact configuration for a manually adjustable C-mount zoom lens.

This mechanical size can be useful for camera designs where the lens must provide manual focal adjustment without requiring a large optical housing.

The 0.2m minimum object distance also allows the lens to be used for relatively close-range observation, expanding its practical application range beyond distant surveillance targets.

For projects with specific mechanical envelope, focal range, or mounting requirements, OEM/ODM customers can contact Towin through the Contact page.

Frequently Asked Questions

Q: What type of lens is the 4-10mm model?
A: It is a C-mount manual zoom CCTV lens designed for surveillance applications requiring adjustable focal length and field of view.

Q: What is the focal length range?
A: The lens provides a manually adjustable focal length from 4mm to 10mm.

Q: What is the horizontal field of view?
A: The horizontal FOV ranges from 88° at the 4mm setting to 45° at the 10mm setting.

Q: What sensor format is this lens designed for?
A: The specified image format is 1/2″. The actual compatibility should be verified with the exact image sensor used in the camera.

Q: Is this a fixed focal lens?
A: No. It is a manual zoom lens. The focal length can be adjusted between 4mm and 10mm.

Q: What is the maximum aperture?
A: The maximum aperture is F1.6. The lens also features a manual iris for aperture adjustment.

Q: What type of camera mount does this lens use?
A: The lens uses a C mount and is designed for compatible C-mount camera systems.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, allowing the lens to support relatively close-range monitoring applications.

Related Products & Resources

For surveillance and adjustable focal-length applications, Towin provides several related products and resources:

• C-Mount Lenses — explore the complete C-mount product range.
• Vari-Focal CCTV Lens — compare other variable focal length CCTV solutions.
• F1.4 Traffic Monitoring Lens — for traffic monitoring applications requiring a bright aperture.
• Lens Selection Guide — review key parameters for lens selection.
• Sensor Guide — understand sensor and lens format compatibility.
• FOV Calculator — calculate and compare field-of-view requirements.

For customized CCTV or C-mount lens requirements, including different focal ranges, aperture specifications, or mechanical dimensions, contact Towin through the Contact page.

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