Trial Lens Set Reduced Aperture

Attractively finished, melamine polished, sturdy wooden cases – illuminated or non-illuminated.

Contents
SPHERES
Convex and Concave
0.12
0.25 to 4.00 in 0.25 steps
4.50 to 6.00 in 0.50 steps
7.00 to 14.00 in 1.00 steps
16.00 to 20.00 in 2.00 steps

CYLINDERS
Convex and Concave
0.12
0.25 to 3.50 in 0.25 steps
4.00 to 6.00 in 0.50 steps

PRISMS(10)
½, 1, 2, 3, 4, 5, 6, 8, 10, 12