300MM FOCAL LENGTH || Diverging lens with a 300mm 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
The double concave glass lens with a 75mm diameter and 300mm focal length is ideal for use in studying optics. The highly polished glass with ground edges and optically worked glass is a great tool for studying the properties of light in a kinesthetically and visually effective manner.