The Optical Core for Mission-Critical Security

In the professional security and specialized monitoring industry, the performance of the lens—the critical gateway for light—determines the reliability of the entire system. The JSD2112 is not a standard consumer lens; it is an M12 S-Mount security optic engineered for high-end embedded vision applications, delivering a powerful combination of high light transmission, ultra-wide field of view, and high-resolution clarity.

Designed for robust surveillance and industrial monitoring modules, the JSD2112 ensures that 5MP sensors operate at peak efficiency, day or night.

Focus Feature 1: F1.2 – The High Light Transmission Advantage

The cornerstone of the JSD2112's superior performance is its colossal F/NO of 1.2. This ultra-wide aperture maximizes the quantity of light that passes through the lens to the 1/2.8” image sensor. This high light transmission capability provides several critical benefits essential for professional security:

Extended Low-Light Range: The enhanced light gathering power allows the camera module to capture usable, high-contrast images in extremely dark environments without relying heavily on noisy electronic gain or energy-intensive IR illumination. This upholds the principle of Precision > Emotion by delivering clean, actionable visual data.

Superior Speed and Clarity: In environments with fast-moving targets (e.g., traffic monitoring, access control), the F1.2 aperture allows the system to use faster shutter speeds. This reduces motion blur while maintaining image brightness, ensuring the 5MP details are captured sharply.

Color Integrity in Darkness: By harvesting more ambient light, the system is often able to maintain color fidelity longer into the twilight hours, providing crucial forensic detail that monochrome images cannot offer.

Focus Feature 2: 172° Wide Angle with 5MP Resolution

The JSD2112 combines high light transmission with an expansive view. The 2.16mm Effective Focal Length (EFL) produces an exceptional 172° Field of View (FoV).

Comprehensive Coverage: This near-panoramic view is ideal for single-camera coverage of large security zones, warehouses, public spaces, and vehicle interiors. This adheres to the Logic of reducing hardware complexity and system cost while maximizing situational awareness.

Geometric Control: Despite its ultra-wide nature, the lens is optically calibrated to minimize artifacts, maintaining distortion at a tightly controlled <-1.1%. This high degree of geometric precision is vital for reliable security analytics, such as accurate line-crossing detection and object tracking across the wide plane.

1/2.8” 5MP Optimization: The lens is specifically matched to the 1/2.8” image circle required by 5MP sensors, ensuring full, edge-to-edge resolution utilization without vignetting—a testament to its professional-grade design.

Integration and Robustness

The standard M12 S-Mount thread ensures universal compatibility with a vast array of embedded camera boards and security modules. The compact Total Track Length (TTL) of 17.41mm allows for easy integration into dome, bullet, or miniature covert camera housings, supporting the Repeatability of mass manufacturing and consistent deployment.

The JSD2112 is the definitive optical solution for professional applications where visual data must be reliable, high-resolution, and clear, irrespective of lighting conditions.