STARTING PRESCRIPTION FOR SCHMIDT CASSEGRAIN s21}
a,eB
Surf Radius Thickness Glass U1r]e%df)
OBJ Infinity Infinity rD=D.1_
STO Infinity 1.000000 Bk7 {|u"I@M*O
2 Infinity 60.000000 mi] WZlg$
3 -60.000000 -30.000000 MIRROR Ip'tB4Mq
IMA Infinity YHEn{z7
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.