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RS50F1.0-640-12
Rising
The 50mm F1.0 LWIR Thermal Sight Lens is a high-speed infrared optic tailored for 640×512–12μm detectors, delivering exceptional thermal resolution and light-gathering capability with its ultra-fast F/1.0 aperture. Operating across the 8–12μm band with >88% average transmission, it provides bright, high-contrast imagery even in extreme low-light or low-temperature environments. The lens offers a 12.4°×10° field of view and manual focus from 1.5m to infinity, making it well-suited for long-range surveillance, target identification, and precision observation applications.
Housed in a compact φ57mm×71.1mm body weighing just 193g, this flange-mount lens is built for portability without sacrificing performance. It features a back focus distance of –9.92mm and operates reliably across a –40°C to +80°C temperature range. The integrated DLC (diamond-like carbon) external coating ensures superior surface hardness, scratch resistance, and environmental durability, guaranteeing stable optical performance in harsh field conditions over extended service life.
Focal length | 50mm |
F# | 1.0 |
Wavelength | 8-12um |
Detector | 640x512-12um |
Average Transmission | ＞88% |
Circular FOV | 12.4°（H)x10°(V)X15.8°(D) |
Back Focus Distance | -9.92mm |
Dimensions | φ57mm/71.1mm |
Focus Type | Manual Focus |
Focus Range | 1.5m to infinity |
Mount Type | Flange |
Weight | 193g |
Operating Temperature | ‘-40℃ to +80℃ |
Storage Temperature | ‘-40℃ to +80℃ |
External Coating | DL |
