29 Jul Thorlabs AC254-200-C Achromatic Doublet 1″ Diameter, 200mm FL, AR 1050nm-1700nm
This is a Thorlabs AC254-200-C Achromatic Doublet: 25.4 mm (1") Diameter 200.0 mm Focal Length Anti-Reflective Coating 1050 nm-1700 nm Wavelength New old stock. XS 13286 30A2...