Focal length 25mm-75mm All-chalcogenide zoom lens

This 25-75mm all-chalcogenide LWIR zoom lens delivers exceptional optical performance with an average transmission of ≥80%, ensuring clear thermal imaging in the 8-12µm wavelength range. Its advanced optical design provides a wide field of view (up to 23.6°×7.1°) and a large 14mm image plane, making it highly compatible with 640×512, 12µm, and 17µm uncooled detectors. Built with a robust 6061-T6 aluminum housing and IP67 environmental sealing, the lens operates reliably in extreme temperatures from -40°C to 80°C. Weighing only 1185g, it combines lightweight construction with MIL-A-8625 Type II Class 2 black anodized surface treatment, ideal for demanding surveillance and industrial applications.