Wide Angle Lens – S02512812921

S02512812921 is 2.5mm High-Quality Ultra Wide angle lens, 1/2.8″ M12X0.5 mount lens, without IRCF F2.1 aperture 2-Megapixel resolution CCTV lens.

2.5mm 2MP M12 Ultra Wide Angle Lens

This 2.5mm 2MP M12 ultra wide angle lens is designed for compact camera systems that require extensive scene coverage without relying on a highly specialized fisheye configuration. With a 158° diagonal FOV, 129° horizontal FOV, F2.1 aperture, and M12×0.5 mount, it provides a practical optical solution for compact surveillance, embedded cameras, and wide-area monitoring devices.

Wide Angle Lens Core Highlights

• 158° Ultra-Wide FOV: Provides extensive scene coverage from a single compact camera position.
• 2MP Imaging Performance: Offers practical resolution for general-purpose monitoring and embedded camera applications.
• 2.5mm Fixed Focal Length: Delivers broad coverage without the complexity of variable optical zoom.
• M12×0.5 Mount: Supports integration into compact camera modules and embedded imaging devices.
• Without IRCF: Provides an optical configuration without an integrated IR-cut filter component for application-specific camera designs.

The combination of 158° diagonal and 129° horizontal FOV makes this lens particularly suitable for systems where a very broad viewing area is required. When planning camera installation, engineers can use the FOV Calculator to evaluate the relationship between sensor size, focal length, working distance, and scene coverage.

Wide Angle Lens Applications

Core Application Scenes

This 2.5mm M12 wide angle lens is designed for compact cameras that need to observe a large surrounding area while maintaining a relatively practical optical configuration. Its 129° horizontal FOV allows a single camera to cover a substantial lateral viewing area, reducing the need for multiple cameras in some space-constrained installations.

For indoor security and area monitoring, the lens can be integrated into compact cameras positioned at entrances, corridors, rooms, small retail areas, and equipment zones. The broad FOV is useful when the camera installation position cannot be located far enough away to achieve the required scene coverage with a longer focal length.

The lens is also a practical option for embedded smart-camera systems where an M12 interface and wide viewing angle are important design requirements. Its configuration without an integrated IRCF gives camera manufacturers greater flexibility when designing systems with application-specific filter requirements.

Because the lens has a wide-angle optical design rather than a low-distortion configuration, engineers should evaluate the specified TV distortion together with the required field coverage. For applications where geometric accuracy is important, the Distortion Guide can help with the optical selection process.

Compatible Device List

• Compact Security Cameras: Suitable for indoor surveillance modules requiring broad horizontal coverage.
• Entrance & Access Cameras: The 129° horizontal FOV can help capture people and activity across a wide entrance area.
• Smart Home Cameras: Suitable for compact room-monitoring devices where a single camera needs to cover a broad field.
• Embedded IoT Cameras: The M12×0.5 mount supports integration into compact connected camera systems.
• Equipment Monitoring Devices: Useful for cameras installed close to machinery, control panels, cabinets, or other equipment requiring broad visual coverage.
• Wide-Area Embedded Vision Modules: Suitable for custom camera assemblies where a 2.5mm focal length and ultra-wide viewing angle are required.

Designed for compact indoor surveillance, smart camera, and wide-area embedded imaging applications.

For more compact optical configurations, explore the M12 Lenses range. Engineers comparing different focal lengths and sensor formats can also refer to the Lens Selection Guide for guidance on selecting an appropriate lens.

For custom optical configurations, mechanical integration, or OEM/ODM camera development, contact TOWIN to discuss your project requirements.

Frequently Asked Questions

Q: What type of lens is this 2.5mm M12 lens?
A: It is a fixed focal length M12 ultra-wide-angle lens with a 2.5mm focal length and a 158° diagonal field of view for broad scene coverage.

Q: What is the field of view of this M12 wide angle lens?
A: With a 1/2.8″ image format, the lens provides a 158° diagonal FOV, 129° horizontal FOV, and 71° vertical FOV.

Q: What sensor size is this lens designed for?
A: The specified field of view is based on a 1/2.8″ image format, with a resolution specification of 2 megapixels.

Q: Is this lens a fisheye lens?
A: Its 158° diagonal field of view reaches the ultra-wide range typically associated with fisheye applications. However, its specified TV distortion of less than -19% makes it more appropriate to position the product primarily as an ultra-wide-angle lens rather than a strongly distorted fisheye lens.

Q: Is this a low distortion lens?
A: No. Although the distortion is lower than some extreme fisheye designs, the specified TV distortion of less than -19% should not be marketed as low-distortion performance.

Q: Does this lens include an IR-cut filter?
A: No. The specification states that the lens is supplied without IRCF, allowing the camera system designer to determine the appropriate filter configuration for the final imaging system.

Q: Does this M12 lens have optical zoom?
A: No. The lens uses a fixed 2.5mm focal length and is designed for fixed-view imaging applications.

Q: What applications are suitable for this ultra-wide-angle lens?
A: It is suitable for compact surveillance cameras, indoor monitoring, smart home cameras, embedded IoT vision, equipment monitoring, and other systems requiring broad scene coverage.

Optical Selection & Related Resources

Selecting an ultra-wide-angle lens requires balancing field of view, sensor size, distortion, aperture, and installation distance. The Lens Basics section provides additional information about fundamental optical parameters, while the Distortion Guide can help engineers understand how wide-angle optical designs affect image geometry.

For systems where coverage requirements need to be calculated before lens selection, the FOV Calculator can help estimate the required field of view.

For additional compact M12 optical solutions, visit the M12 Lenses category, For customized optical development, mechanical requirements, or OEM/ODM projects, contact TOWIN for further support.

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