“ 
nre ^ 
5 CRE ES RENE PTE 
En A A ON ME te PET p 
where D] 2.0: density of original film 
corresponded to the density 
D-2.0 of duplicated image. 
Di 0.3: density of the original film 
corresponded to density 
D=0.3 of duplicated image. 
The image contrasts of all duplicated images are shown in 
Table 3, 
The image contrast of all duplications which were directly 
printed from the original negative film #2445 were about 1:6.0. 
This means that only the targets which have the image contrast 
of 1:6 on the orininal image can be reproduced by the duplication, 
The duplicated images produced through the duplication 
processes as (2445-4109-CCP) and (2445-4109-6110) were found | 
to have a high image contrast of more than 1:10. (€ 
The image contrast of the duplicated image from the original 
color positive #2248 was relatively high as 1:10 when Chiba- 
chrome CCP paper was used, The lower image contrast of 
1;6-7 was attained when Kodak 14RC or 37RC paper were used, 
whether the inter-negative film was utilized or not, 
4-2 COLOR REPRODUCTION 
Reproduction of color patchs, consists of 8 saturated and 
8 pale colors, were measured by the microspectro radiometer and 
their CIE u-v chromatiaties and the color difference from that 
of the original film, were calculated, 
The color differences were plotted in Fig, 18. 
The color negative $2445 was printed on the color positive film 
#4109 and compared with the film #2448. Both film had not 
reproduced the well saturated blue and magenta colors, qe 
In respect of 8 pale colors, the reversal color film #2448 
had a better reproduction than #2445, 
Fig. 19 indicates that the color reproduction of the 
duplicated positive film reprinted from the film #2448, 
In this figure, R3, Gq, Bi, ..... indicate the chromaticity 
coordinates of the pale color and R5, G5, ...».. Of the saturated 
color. 
The film #2447 had same reproducibility as #2448 from a 
stand point of the mean color difference, but their hue shifts