Wide Angle Lens – S03012511816F

S03012511816F is 3mm High-Performance wide angle lens, 1/2.5″ Low F-number S-Mount Lens (F1.6), 5-Megapixel resolution CCTV HD lens, surveillance lens.

For applications where field coverage is critical, you can also use our FOV Calculator to evaluate the relationship between focal length, sensor size and viewing area.

5MP 3mm M12 Ultra-Wide Angle Lens

This 5MP M12 wide angle lens features a 3mm focal length, 152° diagonal FOV and F1.6 aperture for compact cameras requiring extensive scene coverage. With a 1/2.5″ image format, M12×0.5 mount and 8G+IRCF construction, it is suitable for CCTV, automotive camera modules, embedded vision and other space-constrained imaging systems.

For more compact optical solutions, explore our full range of M12 Lenses.

Wide Angle Lens Core Highlights

• 152° Ultra-Wide Field of View: The 3mm focal length provides exceptionally broad scene coverage for compact camera systems where a conventional wide-angle lens may not cover enough of the environment.
• 5MP High-Resolution Imaging: Supports detailed image capture for modern surveillance, embedded vision and camera-module applications.
• F1.6 Large Aperture: Provides strong light-gathering capability, helping maintain usable image brightness in indoor environments, low-light scenes and wide-angle monitoring applications.
• M12×0.5 Compact Mount: The standardized M12 mount makes the lens suitable for compact camera assemblies, embedded vision modules and space-limited optical systems.
• 8G + IRCF Construction: The multi-element optical construction is designed for stable wide-angle imaging, while the IRCF configuration supports camera systems requiring IR cut filtering.

For more information about selecting an appropriate lens according to sensor format and optical parameters, see our Lens Selection Guide.

Wide Angle Lens Applications

Core Application Scenes

1. Wide-Area CCTV Monitoring

The 152° diagonal field of view allows one compact camera to cover a very large area, making this lens suitable for monitoring locations where maximizing scene coverage is more important than maintaining a narrow viewing angle.

Typical environments include entrances, corridors, small retail spaces, elevators, indoor public areas and equipment monitoring zones.

For broader security-camera requirements, this lens can be positioned alongside other options in our CCTV Lens collection.

2. Automotive Camera Modules

The compact M12×0.5 mount and 3mm focal length make this lens suitable for certain automotive camera-module designs requiring a broad viewing area at short working distances.

It can be considered for auxiliary vehicle cameras, near-field monitoring and compact embedded camera systems where wide scene coverage is required.

For more application-specific automotive optical solutions, see our ADAS Vision Solutions.

3. Embedded Wide-Angle Vision

The combination of a small M12 mount, 5MP resolution and 152° diagonal FOV makes the lens suitable for embedded vision equipment that needs to observe a large surrounding area from a compact camera housing.

Potential applications include mobile equipment, intelligent devices, robotics platforms and compact monitoring systems.

For robotics-related optical requirements, explore our Robotics Vision Solutions.

4. Indoor Security & Smart Monitoring

With an F1.6 aperture and ultra-wide viewing angle, the lens can help compact security cameras monitor large indoor areas while maintaining a relatively simple fixed-focus optical configuration.

Designed for ultra-wide-angle CCTV, embedded camera modules, automotive auxiliary cameras and compact smart monitoring systems.

Compatible Device List

• M12 camera modules
• Compact CCTV cameras
• Embedded security cameras
• Automotive auxiliary camera modules
• Robotics camera systems
• Mobile vision devices
• Smart monitoring cameras
• IoT imaging devices
• Custom OEM camera assemblies

The 1/2.5″ image format should be matched with a compatible image sensor to ensure the intended image circle and field of view are achieved. Our Sensor Guide provides additional guidance for sensor and lens matching.

Optical Design & Selection Considerations

A 3mm focal length combined with a 152° diagonal FOV places this lens firmly in the ultra-wide-angle category. The high FOV is intended to maximize scene coverage rather than provide geometrically corrected images.

Because the specified distortion is <-62%, this lens should not be positioned as a low-distortion imaging lens. It is better suited to applications where broad visual coverage is more important than maintaining straight-line geometry.

For applications where distortion characteristics are critical, refer to our Distortion Guide before selecting the optical configuration.

Frequently Asked Questions

Q: Is this a fisheye lens?
A: No. Although the lens provides a very wide 152° diagonal FOV, this product is positioned as an ultra-wide-angle M12 lens, not a fisheye lens.

Q: What is the focal length of this M12 lens?
A: The focal length is 3mm, providing a 152° diagonal, 118° horizontal and 87° vertical field of view on the specified sensor format.

Q: What sensor size is this lens designed for?
A: The lens is designed for a 1/2.5″ image format and provides 5MP imaging performance when properly matched with a compatible sensor and camera module.

Q: Is this lens suitable for CCTV applications?
A: Yes. Its ultra-wide 152° diagonal FOV makes it suitable for compact CCTV systems that need to monitor a large area from a short installation distance.

Q: What type of mount does this lens use?
A: It uses an M12×0.5 mount, making it suitable for compact camera modules and embedded imaging systems that use an M12 optical interface.

Q: Is this a low-distortion lens?
A: No. The specified distortion is below -62%, so this lens is designed primarily for extensive scene coverage rather than low-distortion imaging.

Q: What is the advantage of the F1.6 aperture?
A: The F1.6 aperture provides relatively strong light-gathering capability, which can benefit indoor monitoring and other applications where lighting conditions are not consistently bright.

Q: Can this M12 lens be customized for OEM projects?
A: Yes. TOWIN supports customized optical solutions for OEM and ODM projects, including different focal lengths, image formats, optical performance and mechanical configurations. Contact our optical engineering team to discuss your requirements.

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