Description
1/2.5″ 4.2mm 3MP M12 Wide Angle Lens
Optimize your vision applications with this professional 1/2.5″ 3MP 4.2mm M12 wide-angle lens. Engineered to deliver crisp 3-megapixel resolution, this lens features a premium 5G+IR cut (5 All-Glass Elements + Infrared Cut Filter) optical structure and an F2.0 aperture to ensure sharp image details and excellent color accuracy. Boasting a 95° diagonal field of view and a remarkably short 0.1m Minimum Object Distance, it strikes the perfect balance between broad scene coverage and high-precision close-up clarity, making it an excellent choice for modern security, industrial scanning, and smart terminal applications.
Key Product Highlights
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- 95° Wide-Angle View: Offers an expansive yet natural field of view (77°H / 56°V), delivering excellent spatial overview without heavy geometric distortion.
- 3MP Crystal-Clear Optics: Built with 5 precision layers of premium optical glass (5G) to maximize light transmission and support high-definition 3-megapixel image sensors.
- 0.1m Macro Focusing Capabilities: A very short Minimum Object Distance (M.O.D.) of just 0.1 meters makes it perfect for close-range industrial inspection and document scanning.
- Thermally Stable 5G+IR Structure: All-glass design eliminates focal shift caused by operational heat, while the integrated IR cut filter provides precise daytime color rendition.
- Standard Industrial M12 Mount: Features a standard M12x0.5 thread with a Back Focal Length (B.F.L.) of 7.98mm, ensuring hassle-free mechanical alignment into compact enclosures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/2.5″ |
| Focal Length | 4.2 mm |
| Field of View (F.O.V.) | 95°(D) / 77°(H) / 56°(V) |
| Resolution | 3 Megapixel (3 MP) |
| Aperture (F/#) | F2.0 |
| Mount | M12 x 0.5 |
| Iris Type | Fixed |
| Focus Type | Manual (Adjustable during installation) |
| Zoom Type | Fixed |
| Back Focal Length (B.F.L.) | 7.98 mm |
| Minimum Object Distance (M.O.D.) | 0.1 m |
| Optical Structure | 5G + IR cut (5 All-Glass Elements + Infrared Cut Filter) |
This product is certified by RoHS and ISO9001 quality management system, supports third-party testing, and complies with EU and domestic security equipment access standards, ensuring reliable quality and full compliance.
Applications & Device Compatibility
Core Application Scenarios
This 3MP M12 wide angle lens is intentionally designed for smart hardware environments that require high dimensional accuracy and clear close-up tracking. It serves as an ideal optical component for smart retail POS terminals, barcode scanning kiosks, and ATM security systems where close-range text, QR codes, or human faces must be imaged without fish-eye warping. Thanks to its resilient 5G all-glass structure, it operates seamlessly within smart building intercoms, biometric facial-recognition turnstiles, and office attendance systems. In industrial environments, its 95-degree field of view provides stable monitoring for robotic pick-and-place alignment systems and low-profile conveyor tracking setup.
Compatible Device List
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- Sensors: Natively engineered for 1/2.5″ CMOS image sensors, and highly compatible with popular 1/2.7″ and 1/3″ sensors (e.g., Sony, OmniVision, Onsemi).
- Smart Terminals: Seamlessly fits self-service checkout kiosks, parcel locker scanners, medical diagnostic equipment, and desktop document cameras.
- Surveillance Platforms: Tailored for Hikvision and Dahua mini-dome modules, bullet cameras, and discrete indoor property security enclosures.
- Embedded AI Hardware: Perfectly matches Raspberry Pi camera boards, Jetson Nano modules, and specialized USB/MIPI embedded industrial camera brackets.
“Designed for high-accuracy barcode scanning and compact biometric security applications.”
Frequently Asked Questions
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- Q: What is the benefit of a “Manual” focus specification on a fixed lens?
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- A: This means that during your device assembly, the operator can manually screw the M12 lens deeper or shallower into the board holder to dial in the absolute sharpest focus for your target distance, and then lock it permanently with a thread-locking ring or glue.
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- Q: Does this lens handle temperature fluctuations well?
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- A: Yes, exceptionally well. Because it uses a 5G (5 All-Glass) optical construction rather than cheap plastic elements, it does not experience thermal drift (de-focusing) when the camera module gets hot or operates outdoors.
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- Q: What are the advantages of the built-in IR cut filter?
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- A: The integrated IR cut filter (IRCF) prevents infrared light from reaching the sensor during daytime, avoiding color washing and pink hue distortions, ensuring true-to-life color processing.
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- Q: Can this lens be utilized for close-up micro inspections?
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- A: Yes. With a Minimum Object Distance (M.O.D.) of only 0.1 meters (10cm), it can bring very close objects into exceptionally sharp focus, making it a great tool for industrial component scanning.
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- Q: Will this lens introduce heavy barrel distortion?
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- A: No. At a 95° diagonal field of view, this lens falls into a low-distortion wide-angle category. It provides an expanded view while keeping lines straight and natural compared to ultra-wide fisheye alternatives.
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- Q: What is the benefit of a “Manual” focus specification on a fixed lens?
