

4.5mm M8 low distortion fixed focal wide angle lens with 74° diagonal FOV, <0.5% TV distortion, 0.2m M.O.D. and 8.6mm TTL.
M804512706624F is Low-distortion 2-Megapixel CCTV lens with Built-In IR Filter, F2.4 aperture, 74° 1/2.7″ M8x0.35 mount, Suitable for security Surveillance.
| IMAGE FORMAT | 1/2.7″ |
| FOCAL LENGTH | 4.5mm |
| F.O.V. | 74°(D=6.69) |
| 66°(H=5.82) | |
| 40°(V=3.30) | |
| RESOLUTION | 2 MP |
| TV DISTORTION | <0.5% |
| APERTURE | F2.4 |
| MOUNT | M8x0.35 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 8.6mm |
| STRUCTURE | 2G2P+IRCF |
The 4.5mm M8 low distortion wide angle lens is a compact fixed focal lens designed for 1/2.7″ camera modules requiring broad scene coverage with controlled optical distortion. With a 74° diagonal FOV, <0.5% TV distortion, F2.4 fixed aperture, and an M8 × 0.35 mount, this 2MP miniature lens provides a practical balance between wide-angle imaging, compact integration, and close-to-medium range visual monitoring.
This 4.5mm M8 low distortion lens is designed for compact camera systems that require a relatively wide viewing angle without sacrificing controlled image geometry. Its 74° diagonal field of view provides broad coverage while the 4.5mm focal length offers a slightly more focused perspective than shorter miniature wide-angle lenses.
The lens is particularly suitable for compact embedded cameras, smart monitoring modules, robotic observation systems, IoT imaging devices, and short-range visual sensing equipment. Its <0.5% TV distortion helps reduce geometric deformation, making the captured image more suitable for applications involving object localization, visual monitoring, and image-based analysis.
The 0.2m minimum object distance makes this model suitable for applications where the camera is installed relatively close to the monitored subject but does not require extreme macro-level proximity. This can include equipment observation, compact device monitoring, indoor sensing, and robotic near-field perception.
With an 8.6mm total track length, the lens maintains a compact optical package while providing a 74° diagonal viewing angle. The M8 × 0.35 mounting interface further supports integration into small camera housings and embedded optical modules.
Designed for compact visual sensing and monitoring systems requiring controlled wide-angle coverage at close-to-medium working distances.
For additional miniature mounting configurations, explore Towin’s M8/M7/M6/M5/M3.5 Small Mount Lenses. For projects requiring alternative mechanical interfaces, the Other Mount Lenses category provides additional compact lens configurations.
The relationship between focal length and sensor format is particularly important when selecting a compact wide-angle lens. On a 1/2.7″ sensor, this 4.5mm lens provides a 74° diagonal, 66° horizontal, and 40° vertical FOV, giving engineers a relatively broad viewing area while maintaining a moderate focal length.
Towin’s Sensor Guide provides information on matching image formats with camera sensors. Engineers can also refer to the Lens Selection Guide when comparing focal length, sensor format, FOV, resolution, and optical characteristics.
For camera projects where the required scene coverage needs to be estimated before selecting a lens, the FOV Calculator can help calculate viewing dimensions from sensor and optical parameters. The Focal Length Calculator can be used when the required focal length needs to be determined from working distance and target coverage.
The 4.5mm focal length and 74° diagonal FOV provide a moderate wide-angle configuration rather than an extreme-angle optical design. This lens fits applications that demand broad scene coverage while avoiding fisheye‑style image deformation.
The specified <0.5% TV distortion provides controlled geometric performance for general visual sensing and monitoring applications. The optical structure is 2G2P + IRCF, with IRCF referring to an infrared cut filter. It should not be interpreted as an IR-corrected optical design.
Based on the supplied specifications, the appropriate product classifications are M8/M7/M6 Miniature Lens, Fixed Focal Lens, Wide Angle Lens, and Low Distortion Lens.
Q: What type of lens is the 4.5mm M8 lens?
A: This compact M8 fixed focal wide-angle lens serves 1/2.7″ camera systems. It delivers 2MP resolution, a 74° diagonal FOV, and TV distortion under 0.5%.
Q: Is this 4.5mm lens a fisheye lens?
A: No. The lens provides a 74° diagonal field of view with TV distortion below 0.5%. It is classified as a wide angle low distortion lens rather than a fisheye lens.
Q: What sensor size is this lens designed for?
A: The specified image format is 1/2.7″, with the listed FOV values based on this sensor format.
Q: What is the field of view of the 4.5mm M8 lens?
A: The lens provides approximately 74° diagonal, 66° horizontal, and 40° vertical field of view.
Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, making the lens suitable for relatively close-range imaging without requiring an extremely short working distance.
Q: What is the advantage of the 8.6mm TTL?
A: The 8.6mm total track length provides a compact optical package that can be integrated into space-constrained camera housings and embedded imaging devices.
Q: Does IRCF mean that this is an IR corrected lens?
A: No. IRCF means infrared cut filter. It is used to filter infrared wavelengths in visible-light imaging systems and does not indicate IR-corrected optical performance.
Q: Can the 4.5mm M8 lens be customized?
A: Customization can be evaluated according to the required sensor format, focal length, FOV, mounting interface, housing dimensions, optical coating, and application requirements. For project-specific requirements, contact Towin through the Contact page.
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