STARTING PRESCRIPTION FOR SCHMIDT CASSEGRAIN &lBfW$PZjk
Surf Radius Thickness Glass @)<uQ S
OBJ Infinity Infinity A!fjw
STO Infinity 1.000000 Bk7 kC|tv{g#>
2 Infinity 60.000000 K_]LK
3 -60.000000 -30.000000 MIRROR 3(^9K2.s}
IMA Infinity kt[#@M!}
Now perform a layout plot to verify everything is correct. The standard 2D layout will work fine. You should see a plot like Figure E4-1.