Low Distortion Lens – M803512807722F

M803512807722F is Ultra low distortion wide-angle 8-Megapixel CCTV lens with Built-In IR Filter, 1/2.8″ M8x0.35 mount, F2.2 aperture for security surveillance.

3.5mm M8 8MP Low Distortion Wide Angle Lens

The 3.5mm M8 8MP low distortion wide angle lens is a compact fixed focal lens designed for high-resolution imaging systems that require both broad scene coverage and extremely low distortion. Featuring an 85° diagonal FOV on the Sony IMX415 sensor, <0.2% TV distortion, and a compact 9.6mm TTL, this M8 miniature lens is well suited to space-constrained embedded cameras, compact vision modules, and precision imaging devices.

M8 Low Distortion Wide Angle Lens Highlights

• 8MP optical performance for detailed high-resolution imaging.
• <0.2% TV distortion for highly controlled image geometry.
• 85° diagonal FOV provides broad scene coverage from a compact lens.
• M8 × 0.35 miniature mount supports space-constrained camera designs.
• 9.6mm TTL compact structure simplifies integration into small imaging modules.

3.5mm M8 Low Distortion Lens Applications

Core Application Scenes

This 3.5mm M8 low distortion lens is designed for compact imaging systems where high resolution, wide scene coverage, and accurate image geometry are required at the same time. Its 8MP resolution and <0.2% TV distortion make it particularly useful when a camera must capture a relatively broad field while maintaining well-controlled straight-line reproduction.

The compact M8 × 0.35 mounting interface and 9.6mm total track length make the lens suitable for embedded vision modules, compact smart cameras, robotic sensing units, industrial monitoring devices, and space-limited electronic equipment. The 0.2m minimum object distance also supports relatively close-range imaging where the camera needs to observe equipment, objects, or activity within a limited working area.

For high-resolution embedded cameras based on the Sony IMX415, the 3.5mm focal length provides an 85° diagonal field of view without relying on a fisheye optical design. This combination is useful for applications that need broad coverage but still require low geometric distortion for image analysis, object recognition, monitoring, or downstream computer vision processing.

Designed for high-resolution compact vision systems requiring wide coverage and ultra-low geometric distortion.

Compatible Device List

• Sony IMX415 Camera Modules: Optimized around the specified 1/2.8″ Sony IMX415 sensor configuration for 8MP imaging applications.
• Embedded Vision Cameras: Suitable for compact camera boards, smart sensing modules, and embedded vision equipment where optical space is limited.
• Robotic Vision Modules: The wide FOV can help compact robots observe nearby working areas, components, and environmental features without using a fisheye lens.
• Compact Industrial Monitoring Devices: The <0.2% TV distortion characteristic is useful where image geometry needs to remain highly controlled during monitoring and visual analysis.
• Space-Constrained Camera Housings: The M8 × 0.35 mount and 9.6mm TTL make the lens suitable for miniature optical assemblies with strict mechanical constraints.

For engineers working with miniature camera platforms, Towin’s M8/M7/M6/M5/M3.5 Small Mount Lenses provide additional compact mounting options. The broader Other Mount Lenses category can also be used when a project requires a different mechanical interface.

When integrating an 8MP lens with a camera sensor, image format and sensor compatibility should be checked carefully. Towin’s Sensor Guide explains the relationship between sensor size and lens image coverage, while the Lens Selection Guide provides additional guidance for evaluating focal length, FOV, resolution, and other optical parameters.

For applications where the required field of view needs to be calculated from sensor dimensions and focal length, the FOV Calculator can be used during camera and lens selection. If the required focal length is not yet determined, the Focal Length Calculator can help estimate the appropriate focal length based on the imaging geometry.

Optical Design Considerations

The combination of 3.5mm focal length, 85° diagonal FOV, 8MP resolution, and <0.2% TV distortion makes this lens different from a conventional wide-angle lens designed primarily for maximum coverage. This lens delivers low‑distortion performance, which matters greatly for visual measurement, object localization, machine analysis, and computer‑vision algorithms sensitive to geometric deformation in captured images.

The integrated IRCF (Infrared Cut Filter) is also worth distinguishing from an IR-corrected optical design. The IRCF filters infrared wavelengths for visible‑light camera applications. This does not make the lens an IR‑corrected lens.

Frequently Asked Questions

Q: What type of lens is this 3.5mm M8 lens?
A: It is an M8 miniature fixed focal wide angle lens with 8MP resolution, an 85° diagonal FOV, and ultra-low TV distortion below 0.2%.

Q: Is this lens a fisheye lens?
A: No. Although it provides an 85° diagonal field of view, its TV distortion is below 0.2%. It is therefore better classified as a low distortion wide angle lens rather than a fisheye lens.

Q: What sensor is this 8MP M8 lens designed for?
A: This configuration targets the 1/2.8″ Sony IMX415 sensor and delivers the listed field‑of‑view values: 85° diagonal, 77° horizontal, and 49° vertical.

Q: What is the distortion of the 3.5mm lens?
A: The specified TV distortion is less than 0.2%, providing highly controlled geometric distortion for applications where image shape and straight-line reproduction are important.

Q: What is the field of view of this M8 lens?
A: On the specified Sony IMX415 configuration, the lens provides approximately 85° diagonal, 77° horizontal, and 49° vertical field of view.

Q: What does IRCF mean in the optical structure?
A: IRCF refers to an infrared cut filter. It filters infrared wavelengths from the visible-light imaging path. It should not be confused with an IR-corrected lens, which uses optical correction designed for infrared imaging.

Q: What is the minimum object distance of this lens?
A: The specified minimum object distance is 0.2m, making the lens suitable for relatively close-range imaging applications.

Q: Can this M8 lens be customized for a specific camera module?
A: Customization can be evaluated according to the required sensor, focal length, FOV, mechanical interface, housing dimensions, coating, and optical performance. For project-specific requirements, contact Towin through the Contact page.

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