The GLD40N120 features two preset fields of view—a wide FOV for area surveillance and situational awareness, and a narrow FOV for long-range target recognition and identification. With fast, seamless switching between the two modes, the lens enables efficient detection, tracking, and magnification across varied operational scenarios. Operating in the 8–12 µm spectral range, it enhances the flexibility and responsiveness of infrared imaging systems, making it ideal for security monitoring, UAV payloads, perimeter defense, and other mission-critical thermal applications.