Focal Length 50mm F/1.0 Long Wave 8-12um Infrared Manual Fcous Lens for 640x512-12um Detector

The FL50mm F1.0 LWIR Manual Focus Lens is a long-wave infrared optic purpose-built for 640×512–12μm detectors, delivering a narrow 8.8°×7° field of view that excels at extended-range target discrimination and detail retrieval. With an exceptional >95% average transmission rate and a fast F/1.0 aperture, this germanium lens maximizes scene radiance capture, producing high-fidelity thermal images with superior contrast and minimal noise—critical attributes for long-distance surveillance, border monitoring, and critical infrastructure protection where every detail matters.

Constructed with a robust metal housing and weighing 800g, this lens incorporates a threaded M41×0.75-6g mount for secure system integration and maintains reliable operation across a broad –40°C to +80°C temperature range. The integrated DLC coating provides superior resistance to abrasion, corrosion, and environmental degradation, ensuring consistent optical performance in sand, salt fog, and extreme weather conditions. With an 11mm back focus distance and a 21mm image diagonal, this lens offers seamless compatibility with standard thermal camera cores, delivering dependable, maintenance-free service for mission-critical applications.

FL50mm F#1.0 Lwir Manual Focus Lens Parameter