24 Jul Double Convex Lens, 50mm Focal Length, 2″ (50mm) Diameter – Eisco Labs
Double Convex Lens, 50mm Focal Length, 2" (50mm) Diameter - Eisco Labs Optically True, Double Convex Lens 50mm Diameter, 50mm Focal Length High quality, optically true lens. Made of highly polished, quality glass. Spherical with ground edges. Designed for educational purpose and science classroom demonstrations...