Low Distortion Lens – S03513206628F

S03513206628F is Ultra-Low-distortion 13-Megapixel 1/3.2″ M12 wide-angle CCTV lens with built-in IR filter, F2.8 aperture, ideal for security surveillance.

3.5mm M12 Low Distortion Lens

This 3.5mm M12 high-resolution lens is designed for 1/3.2″ sensors such as the AR1335, delivering 13MP resolution with an ultra-low TV distortion of less than 0.01%. Its 78° diagonal FOV, fixed F2.8 aperture, 0.1m minimum object distance, and compact M12x0.5 mount make it well suited for high-resolution embedded vision, compact machine vision, inspection cameras, and precision imaging systems where image detail and geometric accuracy are essential.

The combination of a 13MP optical design and less than 0.01% TV distortion makes this lens particularly suitable for applications where image geometry needs to remain highly accurate. For more information about matching lenses with image sensors, see the Sensor Guide.

For additional M12 optical solutions, explore Towin’s M12 Lenses product range.

Product Highlights at a Glance

• 13MP high-resolution imaging for detailed image capture on compact camera modules.
• <0.01% TV distortion for exceptionally accurate image geometry.
• 3.5mm focal length with 78° diagonal FOV for broad scene coverage.
• M12x0.5 compact mount for embedded and space-constrained vision systems.
• 0.1m M.O.D. with 2.1mm B.F.L. for close-range and compact camera integration.

3.5mm M12 Low Distortion Lens Applications

Core Application Scenes

This 13MP M12 low distortion lens is designed for compact imaging systems that require both high image resolution and extremely low geometric distortion. Compared with a conventional wide-angle lens, its <0.01% TV distortion is particularly valuable when the captured image is used for measurement, inspection, positioning, or machine-based image analysis.

• Compact machine vision inspection: The 13MP resolution allows small image details to be captured for visual inspection of components, labels, connectors, electronic assemblies, and other compact objects. The extremely low distortion helps maintain accurate object geometry across the image.
• Embedded AI vision: The compact M12x0.5 mount allows integration into embedded cameras and edge-AI vision modules where available installation space is limited but high-resolution image input is required.
• Electronic and PCB inspection: High pixel resolution combined with extremely low distortion makes the lens suitable for close-range imaging of circuit boards, connectors, solder joints, and small electronic components.
• Robotics and robotic inspection: The 78° diagonal FOV provides broad scene coverage while the low-distortion design helps vision algorithms analyze object position and shape with reduced geometric deviation.
• Document and label imaging: The controlled optical geometry can benefit compact imaging devices used to capture labels, printed codes, product markings, and other flat-surface information where edge deformation can affect recognition accuracy.
• Close-range vision systems: With a 0.1m M.O.D., the lens can be positioned relatively close to the target, making it useful for compact inspection modules where the camera cannot be installed far from the object.

Designed for high-resolution close-range machine vision, embedded inspection, and precision imaging applications.

Compatible Device List

• Image Sensors: Designed for 1/3.2″ sensors, with the specified FOV based on the AR1335 sensor.
• Machine Vision Cameras: Suitable for compact 13MP vision camera modules used for inspection, measurement, and object recognition.
• Embedded Vision Modules: Compatible with M12-based board cameras, edge-AI cameras, and compact industrial imaging devices.
• Robotic Vision Systems: Suitable for compact robotic cameras requiring a combination of wide coverage, high resolution, and low geometric distortion.
• Electronic Inspection Equipment: Applicable to camera modules used for PCB, component, connector, and small-part imaging.
• OEM/ODM Camera Projects: The M12x0.5 mechanical interface provides a practical platform for customized compact camera designs.

When selecting a lens for a specific camera sensor, focal length and field of view should be evaluated together. Towin’s Lens Selection Guide provides a useful reference for choosing the appropriate optical configuration.

You can also use the FOV Calculator to estimate field coverage based on sensor and focal-length requirements, or the Focal Length Calculator when determining a suitable focal length for a particular working distance and target size.

Frequently Asked Questions

Q: What sensor size is this 3.5mm M12 lens designed for?
A: This lens is designed for 1/3.2″ image sensors. The specified FOV values are based on the AR1335 sensor.

Q: What is the field of view of this 13MP M12 lens?
A: When used with the AR1335 sensor, the lens provides a 78° diagonal FOV, 66° horizontal FOV, and 52° vertical FOV.

Q: How low is the distortion of this lens?
A: The specified TV distortion is less than 0.01%, making it an ultra-low-distortion optical solution for applications requiring accurate image geometry.

Q: Is this lens suitable for machine vision applications?
A: Yes. Its 13MP resolution, ultra-low distortion, 3.5mm focal length, and 78° diagonal FOV make it suitable for compact machine vision inspection and embedded vision systems.

Q: Is this a fisheye lens?
A: No. Despite its relatively wide 78° diagonal FOV, the lens has an extremely low TV distortion of <0.01%, which is characteristic of a controlled low-distortion wide-angle design rather than a fisheye lens.

Q: What is the minimum object distance of this M12 lens?
A: The specified M.O.D. is 0.1m, allowing the lens to be used for relatively close-range imaging and compact inspection applications.

Q: What type of mount does this lens use?
A: The lens uses an M12x0.5 mount with a fixed iris and a 2.1mm back focal length, making it suitable for compact camera modules.

Q: Can this lens be customized for an OEM camera project?
A: Towin supports OEM/ODM optical and mechanical customization. Specific requirements such as sensor compatibility, FOV, mounting dimensions, optical performance, and housing configuration can be discussed through the Contact page.

Online contact