CCTV Lens – S271312514F3F

S271312514F3F is 3-Megapixel CCTV lens with IR cut filter, 1/2.8″ 2.7-13mm manual zoom and focus lens, F1.4 Low F-number M12/S-Mount Lens.

3MP 2.7-13mm M12 Manual Zoom CCTV Lens

This 3MP 2.7-13mm M12 manual zoom lens combines a 91° wide-angle field of view, compact M12×0.5 mounting interface, and flexible manual focal-length adjustment. With a fixed F1.4 aperture, 0.3m minimum object distance, and integrated IR cut filter, it is designed for compact CCTV cameras, embedded imaging modules, and space-conscious surveillance applications.

M12 Zoom CCTV Lens Core Highlights

• 2.7–13mm manual zoom range provides flexible framing from wide-area scenes to narrower viewing angles.
• 91° horizontal FOV at 2.7mm supports broad coverage for compact surveillance cameras.
• F1.4 fixed aperture provides a bright optical path for a wide range of indoor imaging conditions.
• M12×0.5 compact mount simplifies integration into small camera modules and embedded imaging equipment.
• Built-in IR cut filter supports visible-light camera configurations and helps manage unwanted infrared wavelengths.

Applications & Compatible Devices

Core Application Scenes

Compact Indoor CCTV Monitoring

The 2.7mm wide end provides a 91° horizontal field of view, making this lens suitable for compact security cameras monitoring entrances, corridors, small retail spaces, offices, and indoor access points. The manual zoom allows installers to adjust the framing according to the actual installation position.

Embedded Security Camera Modules

With an M12×0.5 interface and a maximum image circle of Φ7.2mm, this lens is well suited to compact camera assemblies where the optical module must occupy limited space. The 2.7–13mm range provides more installation flexibility than a single fixed-focal M12 lens.

Retail and Commercial Observation

The wide end can provide broad coverage of counters, displays, entrances, or small commercial areas, while the longer focal-length setting can be used when a more concentrated view of a particular zone is required.

Compact Access-Control Cameras

The relatively wide 2.7mm setting can help capture people approaching an access point without requiring a large camera installation footprint. The manual zoom can be configured during installation to match the doorway or passage width.

Embedded IoT Imaging Devices

The small M12 mounting interface and fixed F1.4 aperture make the lens suitable for OEM camera modules where compact optical integration and straightforward mechanical adjustment are important.

Designed for compact CCTV and embedded surveillance applications, this M12 manual zoom lens provides flexible scene framing without requiring a motorized zoom mechanism.

Compatible Device List

• 1/2.8″ CCTV camera modules
• 3MP compact security cameras
• M12-mount surveillance cameras
• Embedded camera modules
• Indoor monitoring cameras
• Retail security camera systems
• Access-control imaging devices
• Compact IoT vision equipment

For additional compact optical solutions, see the M12 Lens product range.

Optical Configuration & Selection

The 2.7–13mm focal-length range gives this lens a broad adjustment range for a compact M12 optical system. At 2.7mm, the lens provides a 91° horizontal field of view on a 1/2.8″ sensor, while the 13mm setting narrows the horizontal FOV to 29°.

The lens uses a fixed F1.4 aperture rather than an adjustable iris. This provides a consistent optical aperture, while exposure is controlled primarily through the camera’s sensor and electronic exposure system.

When selecting an M12 lens, engineers should consider sensor size, required field of view, installation distance, image circle, and focal length together. TOWIN’s Lens Selection Guide provides additional guidance for matching these parameters.

The required scene coverage can also be estimated with the FOV Calculator before finalizing the focal length.

Frequently Asked Questions

Q1: What type of lens is the 2.7–13mm M12 model?

A: It is a compact M12 manual zoom lens designed for CCTV, embedded security cameras, and other space-conscious imaging systems. It features a 2.7–13mm focal range and M12×0.5 mount.

Q2: What is the field of view of this M12 lens?

A: For a 1/2.8″ sensor, the horizontal field of view ranges from 91° at 2.7mm to 29° at 13mm.

Q3: Is this lens a fisheye lens?

A: No. Although the 2.7mm setting provides a relatively wide 91° horizontal FOV, the supplied specifications do not indicate a fisheye optical design. It is better classified as a wide-angle M12 zoom lens.

Q4: Is this lens IR corrected?

A: The specification confirms an IR cut filter, but does not state that the lens is IR corrected. An IR cut filter blocks infrared wavelengths, whereas an IR-corrected optical design is intended to control focus and image performance across different wavelengths.

Q5: Is the zoom motorized?

A: No. Both zoom and focus are manual. The focal length can be adjusted during installation or system setup, making it suitable for applications where continuous remote zoom control is not required.

Q6: What sensor size is this lens suitable for?

A: The horizontal FOV specification is provided for a 1/2.8″ sensor, and the image format is specified as a maximum Φ7.2mm image circle.

Q7: What is the aperture of this M12 lens?

A: The lens has a fixed F1.4 aperture. This provides a bright optical path without requiring a variable iris mechanism.

Q8: What is the minimum object distance?

A: The specified M.O.D. is 0.3m. This means the lens is designed to focus on objects from approximately 0.3 meters under the specified optical configuration.

Online contact