EISCO Meniscus Lens, Concave, 50mm Diameter - Focal Length, 3D - Spherical, Optically Worked Glass - Ground Edges, Highly Polished - Great for Physics Classrooms
$9.99
Description
MENISCUS LENS || Highly polished, meniscus lens measuring 50mm in diameter.-3D FOCAL LENGTH || Lens has a -3D 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
