Fisheye Lens – CCL12802520MPF

CCL12802520MPF 1/2.8″ 2.5mm M12 Fisheye Lens with 158° FOV

2.5mm M12 Fisheye Lens | 4MP 158° CCTV Lens

This 2.5mm M12 fisheye lens is designed for compact imaging systems that require extremely wide scene coverage from a short working distance. Featuring a 1/2.8″ image format, 4MP resolution, and an impressive 158° diagonal field of view, the lens can capture a substantially larger area than conventional wide angle lenses. Its 130° horizontal and 72° vertical FOV make it particularly suitable for applications where maximizing visual coverage is more important than maintaining low geometric distortion.

The lens features a compact 18mm TTL, 5.04mm BFL, M12X0.5 mount, fixed F2.0 aperture, and manual focus. A 0.2m minimum object distance allows it to capture relatively close scenes, while the integrated IR cut-off element supports visible-light imaging by filtering infrared wavelengths. The 6G optical construction provides a dedicated optical configuration for compact 4MP camera modules.

For applications requiring extremely broad image coverage, TOWIN’s M12 Lenses provide compact optical solutions for embedded cameras, security devices, and other space-constrained imaging systems.

Quality & E-E-A-T Information

• Optical construction: 6G + IR Cut Off
• Resolution: 4 Megapixel
• Image format: 1/2.8″
• Mounting interface: M12X0.5
• Reference sensor: IMX290
• Minimum object distance: 0.2m
• Manual focus and fixed iris configuration
• 18mm total optical length

For technical background on lens construction, optical parameters, and lens selection, see TOWIN’s Optical Design and Lens Basics.

Key Product Highlights

• 158° Ultra-Wide Diagonal FOV — Captures an exceptionally large scene, making it useful when reducing blind areas is more important than maintaining conventional rectilinear imaging.
• 2.5mm Fisheye Design — The very short focal length delivers extreme wide-angle coverage from a compact M12 optical package.
• 4MP Resolution Support — Provides substantially more image detail than basic 2MP compact lenses, supporting applications where broad coverage and useful image detail are both required.
• 18mm TTL Compact Structure — Helps camera designers integrate an ultra-wide optical system into compact housings without requiring a long lens barrel.
• F2.0 Aperture + IR Cut Off — Combines a relatively bright fixed aperture with an integrated infrared cut-off element for visible-light camera applications.

M12 Fisheye Lens Applications

This lens is specifically suited to wide-area monitoring systems where a single compact camera needs to observe as much of the surrounding scene as possible. Unlike conventional 3mm–4mm wide-angle lenses, its 158° diagonal FOV makes it particularly useful when camera placement is close to the monitored area or when minimizing blind zones is a major design requirement.

Core Applications

• Panoramic Security Cameras — The 158° diagonal FOV allows a compact camera to monitor a broad area from a single installation position, reducing the need for multiple camera modules in certain monitoring configurations.
• Indoor Wide-Area CCTV — The lens is suitable for rooms, retail spaces, entrances, corridors, and other areas where a very broad viewing angle is required.
• Compact Smart Security Cameras — Its 18mm TTL and M12X0.5 interface make it suitable for small camera housings where internal optical space is limited.
• Doorway & Entrance Monitoring — The 130° horizontal FOV can capture a broad entrance region, helping reduce areas outside the camera’s horizontal coverage.
• Embedded Wide-Angle Cameras — The short 2.5mm focal length and compact mechanical dimensions make the lens suitable for embedded camera modules requiring an exceptionally wide perspective.
• Indoor IoT Vision Devices — The combination of 4MP resolution, F2.0 aperture, and compact M12 mounting provides a practical optical configuration for smart monitoring devices.
• Close-Range Scene Monitoring — With a 0.2m M.O.D., the lens can be positioned relatively close to the monitored subject while maintaining a wide field of view.

Compatible Devices

The lens is designed for 1/2.8″ sensors, with the specified FOV based on the Sony IMX290 configuration. It can be considered for compatible 4MP camera modules, M12-based security cameras, embedded vision boards, compact IoT cameras, and wide-area monitoring devices.

For customers looking for additional M12 wide angle and fisheye configurations, TOWIN’s Fisheye Lenses provide a dedicated product category for extremely wide-angle imaging requirements.

The lens’s <-70% optical distortion is a defining characteristic of its fisheye optical design. Therefore, it should be selected for wide-area coverage and situational awareness rather than precision measurement or geometric inspection. Customers requiring more accurate object geometry can evaluate TOWIN’s Low Distortion Lenses instead.

When determining whether the 158° FOV is appropriate for a particular installation, the sensor’s active image area, camera mounting height, object distance, and required coverage should all be considered. TOWIN’s FOV Calculator can help evaluate field-of-view requirements during the lens selection process.

For broader guidance on matching a lens to a camera sensor, see the Lens Selection Guide.

Designed for ultra-wide-angle security monitoring and compact panoramic imaging applications.

Frequently Asked Questions

Q: What sensor is this 2.5mm M12 fisheye lens designed for?
A: The lens is designed for a 1/2.8″ image format, with the listed 158° diagonal, 130° horizontal, and 72° vertical FOV based on the Sony IMX290 sensor configuration.

Q: What is the field of view of this fisheye lens?
A: The specified FOV is 158° diagonal, 130° horizontal, and 72° vertical when used with the referenced IMX290 sensor configuration.

Q: Is this lens a true fisheye lens?
A: Based on its 2.5mm focal length, 158° diagonal FOV, and optical distortion below -70%, it is best classified as an ultra-wide fisheye lens rather than a conventional low-distortion wide-angle lens.

Q: Is this 2.5mm lens suitable for CCTV cameras?
A: Yes. Its ultra‑wide FOV and compact M12×0.5 mount suit compact CCTV, panoramic monitoring, indoor security and embedded camera applications.

Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.2m, allowing the lens to be used for relatively close-range wide-area imaging.

Q: Does this lens support infrared imaging?
A: The construction includes an IR cut-off element. This means the optical system filters infrared wavelengths for visible‑light imaging; do not label it an IR‑corrected lens without confirmed IR correction.

Q: Is this lens suitable for machine vision measurement?
A: It is generally not recommended for precision measurement because the specified optical distortion is below -70%. Its primary strength is extremely wide scene coverage rather than accurate geometric reproduction.

Q: What is the advantage of the 18mm TTL?
A: The 18 mm TTL enables a compact optical design, letting manufacturers fit the lens into shallow‑depth small camera housings and embedded imaging devices.

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