

3.4mm M7 low distortion miniature lens with 2MP resolution, <1% TV distortion, 67° FOV, F2.8 aperture and 1/4″ image format for compact vision systems.
M703414005628F is Low distortion 2-Megapixel CCTV lens with Built-In IR Filter, with 1/4″ format, 67° diagonal F.O.V., F2.8 aperture, Suitable for security Surveillance.
| IMAGE FORMAT | 1/4″ |
| FOCAL LENGTH | 3.4mm |
| F.O.V. | 67°(D) |
| 56°(H) | |
| 44°(V) | |
| RESOLUTION | 2 MP |
| TV DISTORTION | <1% |
| APERTURE | F2.8 |
| MOUNT | M7x0.35 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| M.B.F.L. | 1.07mm |
| STRUCTURE | 4P+IRCF |
| CRA | <25° |
This 3.4mm M7 miniature lens is designed for compact vision systems requiring 2MP imaging, controlled geometric distortion, and a broad 67° diagonal field of view. With a 1/4″ image format, fixed F2.8 aperture, and less than 1% TV distortion, it provides a compact optical solution for embedded machine vision and industrial imaging modules.
For applications where sensor size, focal length, and field of view must be evaluated together, the Lens Selection Guide can help engineers identify a suitable optical configuration.
This M7 3.4mm low distortion lens is designed for compact vision equipment that needs a relatively broad viewing angle while maintaining accurate image geometry. Its 67° diagonal FOV provides useful scene coverage without relying on the strong barrel distortion associated with fisheye optics.
The combination of a 1/4″ image format and 2MP resolution makes the lens suitable for embedded cameras that require a larger image area than ultra-small sensor modules. The fixed 3.4mm focal length also provides a consistent optical configuration for repeatable imaging tasks where the camera-to-object geometry remains relatively stable.
With an M7 × 0.35 mount and compact optical structure, the lens is well suited to applications where the available camera enclosure is limited but the system still requires controlled distortion. The <1% TV distortion can be particularly useful when visual information needs to maintain relatively accurate proportions across the image.
For applications requiring field-of-view estimation before final lens selection, engineers can use the FOV Calculator to compare focal length, sensor format, and working distance.
For additional miniature optical options, TOWIN’s M8/M7/M6/M5/M3.5 Small Mount Lenses cover a range of compact mounting configurations.
For broader industrial imaging requirements, the Machine Vision solutions section provides additional application information.
Designed for compact machine vision, embedded industrial imaging, and robotic vision applications requiring controlled distortion.
Q: What is the focal length of this M7 miniature lens?
A: The lens has a fixed 3.4mm focal length and provides a 67° diagonal field of view on the specified 1/4″ image format.
Q: What is the field of view of this 3.4mm M7 lens?
A: The specified FOV is 67° diagonal, 56° horizontal, and 44° vertical.
Q: Is this lens a low distortion lens?
A: Yes. The specified TV distortion is below 1%, making it suitable for imaging applications where controlled geometric distortion is important.
Q: What sensor size is compatible with this lens?
A: The lens is designed for a 1/4″ image format and supports 2MP imaging.
Q: Is this lens a fisheye lens?
A: No. Although the lens provides a relatively broad 67° diagonal FOV, its distortion is below 1%, which is not characteristic of a typical fisheye optical design.
Q: Is the 3.4mm M7 lens suitable for machine vision?
A: Yes. Its 2MP resolution, <1% distortion, fixed focal length, and compact M7 mounting format make it suitable for miniature machine vision and embedded industrial imaging systems.
Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.2m, making it suitable for relatively close-range imaging applications.
Q: What does the 4P + IRCF structure indicate?
A: The optical structure uses four lens elements together with an IRCF configuration. Since no specific infrared wavelength or correction performance is provided, detailed IR optical performance should be confirmed for applications requiring defined infrared imaging characteristics.
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