Optical Lens Set, 2", 6-Piece, Convex and Concave

This 6-piece optical lens set includes three double convex and three double concave lenses, each measuring 2" (50mm) in diameter. Focal lengths of 200mm, 300mm, and 500mm are represented in both converging and diverging configurations. Each lens is made from optically worked glass with polished faces and ground, beveled edges. The set provides a comprehensive selection for physics classroom demonstrations in optics and light refraction, allowing students to study image formation, focal length properties, and the behavior of converging and diverging lenses.