Technical Specifications:

Reduced Aperture, 225 Lens,

Contents:-

32 pairs each cx and cc sph 20 pairs each cx and cc cyl
0.25 to 4.00 in 0.25 steps 0.25 to 3.50 in 0.25 steps
4.50 to 6.00 in 0.50 steps 4.00 to 6.00 in 0.50 steps
7.00 to 14.00 in 1.00 steps 10 prisms
16.00 to 20.00 in 2.00 steps 1/2,1,2,3,4,5,6,8,10,12

Accessories:

Maddox Rod, Stenopaic Slit, Pinhole 2 blank discs, Red Glass, Green Glass, Trial Frame