EISCO Double Concave Lens, 50mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
$11.99
Description
DOUBLE CONCAVE || Highly polished, double concave lens.SPHERICAL || Lens measures 2" (50mm) in diameter and is approximately 13mm thick.50MM FOCAL LENGTH || Diverging lens with a 50mm focal length.OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges.GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction
