FL200mm F/2.0 MWIR Motorized Germanium Lens for 640x512-15um Detector

The 200mm F/2.0 MWIR Motorized Focus Lens is a high-performance mid-wave infrared optic engineered for 640×512–15μm cooled detectors, delivering an ultra-narrow 2.1°×2.1° field of view that excels at extreme long-range target identification, reconnaissance, and precision surveillance across the 3–5μm band. With >85% average transmission and an F/2.0 aperture, this lens captures fine thermal signatures at exceptional distances, while the integrated cold stop (16mm diameter at 20.47mm position) ensures optimal stray light suppression for cooled detector systems. The motorized focus mechanism enables precise remote adjustment from 5 meters to infinity, allowing operators to maintain crisp focus without physical intervention—critical for elevated or inaccessible installation points.

Housed in a robust φ130mm×203.79mm barrel weighing 1065g, this lens features a flange mount with precise back focal distances (10mm BFD, 10mm BWD, 36.36mm BFL) for straightforward integration into cooled thermal camera systems. Engineered to operate reliably from –40°C to +80°C, it delivers consistent optical performance under extreme environmental conditions. An optional DLC coating is available to enhance surface durability and resistance to abrasion, ensuring long-term reliability in demanding field deployments. This lens is the ideal choice for professional-grade MWIR thermal imaging applications requiring uncompromised ultra-long-range detection and identification capability.

Focal Length 200mm f/2.0 MWIR Manual Focus Lens Parameter