MOTION-PICTURE PHOTOGRAPHY 



669 



The Z)-log E and time-gamma curves for the Eastman negative stocks are given in 

 Figs. 6 through 10. Each figure contains two graphs: the D-logio^ characteristics 



2.00 



1.80 



1.60 



i.40 

 _>.l.20 

 ■| 1.00 

 QQ80 



0.60 



0.40 



020 

 



1.65 



2.65 



Fig. 9A 

 1.20 

 1.00 



^0.80 



I 0.60 



(So.40 



Q20 



Fig. 95. 



065 1.65 



Log Exposure 



-X)-logio E curves of Eastman, duplicating negative, Regular, No. 1503. 



1.20 



1.00 



030:^ 



060 i 

 o 

 040 



0.20 



8 



12 



14 



16 



18 



20 



10 

 Minu+es 

 -Time-gamma curve of Eastman duplicating negative, Regular, No. 1603. 



2.20 



2.00 



1.80 



1.60 



^ 1.40 



1 1.20 



^ 1.00 



Q80 



060 



QAQ 



020 

 



2.25 



L25 



Fig. IDA. — Z)-logio E curves of 



L25 Q25 



Log Exposure 



Eastman motion-picture negative. No. 1201 (ortho- 

 chromatic). 



and the time-gamma curve. In all cases development was in an Elon-hydroquinone- 

 borax developer (Formula D-76), the composition of which is given under Laboratory 

 Practice in this chapter.^ 



1 Since the time of development for a given gamma is influenced by such factors as temperature and 

 degree of agitation, all time-gamma curves shown are accurate only for the conditions under which they 

 were made and would vary somewhat in other laboratories. 



