ta ay L3 106 UNITS ———__ a Se | oe | : . lo— | | \ | : | | | as— | | | ' | : ! J WERT | ] Fig. 2c 8 4 ! . ‘ 7 ! | PNST | ' Lo Lt l 20 Xo LOG RELATIVE EXPOSURE 11.3--Typical density-exposure curve sbowing position of inertia point. T 3500 & T T ; T , j 4 re 4000 ——— r om eee oe ss. s$00C Aa HD OS $30 : rsh ~ OLNDITY (leg ut) L ¢| LoL L \ r i ase t ~ 0 a “10 = get tet atoPd \ Q 7 ! | | = 1 L2G ENPTS.ME (og sem?) Ll.+--Density-log exposure versus waveleogrth. say z DUNBITY (leg WT) | Of |