

The M12 1.5mm 12MP fisheye lens delivers up to 238° ultra-wide coverage with F2.0 aperture, 0.2m M.O.D., and F-Theta distortion below -15%. Its high-resolution 8G optical structure is designed for panoramic imaging, robotics vision, embedded AI, and wide-area environmental perception.
S4523820F is 12-Megapixel Fisheye CCTV Lens with Built-In IR Filter, 1.5mm focal length High-resolution M12-Mount for security surveillance.
| IMAGE FORMAT | Φ4.5 |
| FOCAL LENGTH | 1.5mm |
| F.O.V. | 238°(D=4.8) |
| 238°(D=4.5) | |
| 165°(D=3.5) | |
| RESOLUTION | 12 MP |
| F-THETA DIST. | <-15% |
| APERTURE | F2.0 |
| MOUNT | M12x0.5 |
| IRIS | Fixed |
| M.O.D. | 0.2m |
| T.T.L. | 20.1mm |
| STRUCTURE | 8G+IRCF |
This 1.5mm M12 fisheye lens delivers an ultra-wide 238° field of view with up to 12MP resolution and F-Theta distortion below -15%, providing broad scene coverage for panoramic imaging, robotics, embedded vision, and high-resolution environmental perception.
The combination of 12MP resolution, 238° field of view, 1.5mm focal length, and F-Theta optical projection makes this lens particularly suitable for systems that need to capture an exceptionally large scene while retaining high image detail.
For engineers comparing different ultra-wide M12 optical configurations, the M12 Lenses range provides additional focal-length and optical-format options.
Because this lens uses a 238° fisheye field of view, image geometry should be evaluated according to the target application rather than using the same criteria as a conventional low-distortion machine vision lens. The Distortion Guide provides useful background when evaluating fisheye and wide-angle optical distortion.
For scene-coverage verification, the FOV Calculator can help engineers estimate the relationship between sensor format, lens parameters, and required viewing area.
Designed for high-resolution panoramic, robotics vision, and ultra-wide environmental imaging applications.
Q: What is the maximum FOV of this 1.5 mm M12 fisheye lens?
A: It reaches 238° for D=4.8 and D=4.5 formats; 165° for D=3.5.
Q: Is this lens compatible with 12MP cameras?
A: Yes. It is 12MP‑rated and works with high‑resolution modules when sensor format, image circle and optical interface match.
Q: Why can its FOV go beyond 180°?
A: Fisheye lenses adopt special projection to break the 180° limit of rectilinear imaging. Output images show heavy geometric curvature, which can be digitally corrected.
Q: Is this a low‑distortion lens?
A: No. Built for ultra‑wide coverage, its F‑Theta distortion is below ‑15%. It is not a rectilinear low‑distortion lens for precision measurement.
Q: What are the benefits of F‑Theta design?
A: F‑Theta projection creates stable mapping between incident angle and image position, supporting image correction, panoramic processing and computational vision for fisheye systems.
Q: What does 8G + IRCF stand for?
A: 8G means eight glass elements. IRCF is an IR‑cut filter for visible‑light imaging and does not represent infrared optical correction.
Q: What is its M.O.D.?
A: M.O.D. is 0.2 m, supporting both close‑range wide‑area shooting and long‑distance environmental imaging.
Q: Can it apply to robotics vision?
A: Yes. Its 238° FOV delivers extensive environmental coverage, ideal for detecting objects and obstacles within a wide angle in compact robotic installations.
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