C-FOCAL,1969 01.01 T "THEATRICAL MOTION PICTURE PROJECTION LENS SELECTION"! 01.10 T "PROGRAM (NOTE: LIMITED TO 35 AND 70 MM PROJECTORS)"! 01.12 A "WHAT GAGE IS YOUR PROJECTOR IN MILLIMETERS?" A 01.13 I (A-35) 2.1,3.1,4.1 02.10 T "SORRY, THIS PROGRAM IS LIMITED TO 35 AND 70 MM"; G 7.1 03.10 T "IS YOUR THEATER TO USE ITS LENS FOR FLAT OR SCOPE? IF"! 03.20 A "IT IS GOING TO USE SCOPE, TYPE '1'; IF FLAT, TYPE '2'" B 03.30 I (B-2) 3.31,3.5,6.1 03.31 A "HOW FAR IS THE SCREEN FROM THE PROJECTOR IN FEET?" DI 03.32 A "WHAT IS THE WIDTH OF THE SCREEN IN FEET?" WI 03.33 T "THE CORRECT FOCAL LENGTH IS" (2.35)*DI/WI, " INCHES."! 03.34 T "SCREEN HEIGHT MUST BE AT LEAST" (.715)*WI/2.35," FT.";G 7.1 03.50 A "HOW FAR IS THE SCREEN FROM THE PROJECTOR IN FEET?" DN 03.51 A "WHAT IS THE WIDTH OF THE SCREEN IN FEET?" WD 03.52 T "THE CORRECT FOCAL LENGTH IS" (.825)*DN/WD, " INCHES."! 03.53 T "THE SCREEN HEIGHT MUST BE AT LEAST" (.446)*WD/.825, " FT."! 03.54 T "THESE DAYS, YOU'D BETTER CONSIDER GETTING AN"! 03.55 T "ANAMORPHIC SYSTEM!" ; G 7.1 04.10 A "HOW FAR IS THE SCREEN FROM THE PROJECTOR IN FEET?" DT 04.20 A "WHAT IS THE WIDTH OF THE SCREEN IN FEET?" WT 04.30 T "THE CORRECT FOCAL LENGTH IS" (1.913)*DT/WT, " INCHES."! 04.40 T "SCREEN HEIGHT MUST BE AT LEAST" (.868)*WT/1.913, "FT."; G 7.1 06.10 T "SORRY, THE CHOICE IS LIMITED TO FLAT OR SCOPE." 07.10 Q *`x