Double Convex Spherical Lenses: +3.3D - Pack of 5

Ideal for hands-on exploration of light and optics, these double convex spherical lenses help students visualise refraction and focal points in science lessons. Designed for classroom use, they support practical investigations in secondary and college settings.

• Double convex, spherical lenses for optical experiments

• Diameter: 50mm

• Focal length: 300mm

• Power: +3.3 dioptres

• Made from float glass with optically worked faces and ground edges

• Pack of 5 for group activities