FSCI017 Optical Glass Lens Set - 3 Dbl Convex, 3 Dbl Concave, 38mm Dia - 20, 30, 50cm FL

FSCI017 Optical Glass Lens Set - 3 Dbl Convex, 3 Dbl Concave, 38mm Dia - 20, 30, 50cm FL

This lens set is perfect for doing optical experiments comparing focal lengths and convex vs. concave lenses.

• 38mm diameter glass lenses
• 3 Double Convex, 3 Double Concave - 20cm, 30cm, 50cm Focal Lengths
• Optically true glass
• Ground, beveled edges

(3) Double Concave -20,30,50cm Focal Length, (3) Double Convex - 20,30,50cm Focal Length