Description
1/2.5″ 3.2mm 3MP M12 Wide Angle Fixed Focal Lens
Enhance your optical system with this high-performance 1/2.5″ 3MP 3.2mm M12 wide-angle lens. Engineered for crisp 3-megapixel resolution, this lens features a robust 5G+IR (5 Glass + Infrared Filter) structure and a bright F1.8 aperture to deliver exceptional image clarity even in challenging lighting conditions. Boasting a 137° diagonal field of view, it provides expansive coverage, making it an ideal choice for next-generation security, smart home, and industrial vision applications requiring a compact yet powerful optical solution.
Key Product Highlights
- 137° Ultra-Wide Field of View: Captures a sweeping wide-angle perspective (100°H / 73°V) to eliminate blind spots without the extreme distortion of a fisheye lens.
- 3MP Sharp Optics (5G+IR): Built with 5 premium glass elements and an integrated IR filter, ensuring 3-megapixel edge-to-edge sharpness and vivid color reproduction.
- Low-Light F1.8 Aperture: The large F1.8 fixed iris maximizes light intake, delivering bright, low-noise imagery in dim environments.
- Micro-Distance Focusing: Features a Minimum Object Distance (M.O.D.) of just 0.1m, perfect for close-up macro scanning and tight-space inspections.
- Ultra-Compact M12 Mount: Standard M12x0.5 thread with an overall length (T.T.L.) of 18.5mm allows seamless, low-profile integration into space-constrained devices.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/2.5″ |
| Focal Length | 3.2 mm |
| Field of View (F.O.V.) | 137°(D) / 100°(H) / 73°(V) |
| Resolution | 3 Megapixel (3 MP) |
| Aperture (F/#) | F1.8 |
| Mount | M12 x 0.5 |
| Iris Type | Fixed |
| Distortion | < 63% |
| Minimum Object Distance (M.O.D.) | 0.1 m |
| Total Track Length (T.T.L.) | 18.5 mm |
| Dimensions | Φ14 × 14.2 mm |
| Lens Construction | 5G + IR (5 Glass + Infrared 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 M12 wide angle lens is purpose-built for environments requiring an expansive field of view within a minimal physical footprint. It excels in smart home security deployments, such as smart video doorbells and property entrance monitors, where capturing a full-length human figure at close range is critical. Additionally, its high-resolution 3MP optical glass construction makes it highly reliable for automotive dashcams, surround-view backup cameras, and compact AI-driven drone navigation. In industrial setups, it provides wide-area scanning for packaging lines and automated guided vehicles (AGVs) operating in tight warehouse aisles.
Compatible Device List
- Sensors: Fully compatible with 1/2.5″, 1/2.7″, and 1/3″ mainstream CMOS image sensors (e.g., Sony, OmniVision, Onsemi).
- Smart Home Devices: Seamlessly integrates with Tuya IoT hardware, Xiaomi smart doorbells, and ring-style camera modules.
- Security & Surveillance: Fits Hikvision and Dahua low-profile dome cameras, bullet camera modules, and ATM security kiosks.
- Industrial Vision: Micro-inspection systems, embedded Raspberry Pi / Jetson Nano camera boards, and robotic pick-and-place visual modules.
“Designed for wide-angle surveillance and compact machine vision applications.”
Frequently Asked Questions
- Q: What is the benefit of the 5G+IR lens construction?
- A: The 5 Glass layers ensure high light transmission and thermal stability, preventing image degradation over time, while the IR filter cuts off infrared light to ensure precise color accuracy during daytime shooting.
- Q: Can this 1/2.5″ lens be used on a 1/3″ sensor?
- A: Yes, it is fully compatible. Using it on a smaller sensor (like 1/3″) will eliminate any edge vignetting, though the effective field of view will be slightly narrower than 137°.
- Q: Does this lens support manual focus adjustment?
- A: This is a fixed focal lens. You can adjust the initial focus during installation by screwing the M12 mount into your camera holder, after which it remains fixed.
- Q: Is this lens suitable for outdoor night-vision cameras?
- A: Yes. The bright F1.8 aperture allows excellent light transmission for low-light conditions, and it pairs perfectly with external IR illuminators for night-vision setups.
- Q: What does <63% distortion mean for a wide-angle lens?
- A: For an ultra-wide 137° lens, controlled distortion under 63% ensures a wide, panoramic view while keeping straight lines relatively natural compared to heavy fish-eye distortion.
