United Scientific™ Demonstration Lens Set

Introductory lens set for optics experiments.

• Concave and convex selection
• All focal lengths are 150 mm

The set contains six 38 mm lenses, one each of double convex, plano-convex,concavo-convex, double concave, plano-concave, and convexo-concave lens. Comes in a reusable cardboard storage box. Lenses in all sets have focal lengths on 150 mm.