Full text: Commissions I and II (Part 3)

6 
14-S 10/302-1 
ein Gamma 
sich nach fo 
!g ¿Soll = h 
Im angefüh] 
aufnahme 1 
erhält man 1 
Die aus dei 
lichtungszeil 
lichtungsme 
die Grundlaj 
Wichtig ist, 
effektive Ei: 
Empfindlich 
abweichen h 
Voraussetzu 
schriebene 
dem Benut2 
toren bekar 
Bedingunge 
usw. zu her 
Anmerkung 
zungen und 
teten Licht 
zungen sind 
Schrifttum 
[1] Traenk 
nahmen. Z. 
[2] Michaii 
Moskau 195 
[3] Deutsch 
Skalen, Kal 
[4] Brock, 
grafie (engl 
[5] Hariha 
sions. J. 0. 
[6] HOWLE' 
Speed of A 
A, 24, 1—7 
[7] Zeth, I 
zeit für Lu 
und Photoc 
[8] Carmai 
of Fine De 
305. 
[9] Carmai 
photogrami 
sehe Teste 
XIII-4, An 
[10] Friesi 
kleiner De 
Korr., Wie] 
(1956) Nr. < 
[11] Gost 
fische Mat( 
allgemeinst 
dard-Komi 
118 
# 
т it % 
C. 
Fig. 12. Pin-gauge (National Bureau of Standards Type) 
Diapositive film (CNT) : D-72 (1:2), 20°C, 2 minutes. 
Fixing (PET, TAC, CNT) : FFH-4, 20°C, 5 minutes. 
Washing: Running water, 17°C, 15 minutes. 
Drying: 46°C, R.H. 20%, 10 minutes. 
Re-measurement : After the photographic treatment test strips are 
measured again under the room condition of 65% R.H., then the shrin 
kage of the test strips are calculated by the comparison of the results 
of a. and c. They are shown on Table 8. 
Table 8. Shrinkages measured by the Pin-gauge 
Distances 
between 
Pin-holes 
10cm 
A В 
20cm 
C D 
PET 008A 
mm 
+ 0.007 
mm 
+0.008 
mm 
+ 0.015 
mm 
+ 0.011 
// 008B 
-0.003 
+ 0.010 
0.000 
+ 0.012 
TAC 
-0.065 
-0.061 
+ 0.015 
+0.008 
CNT 1 
+ 0.009 
+0.013 
+ 0.006 
-0.008 
/PET\ „ 
(base/ 
+0.006 
-0.008 
+ 0.001 
-0.008 
3 
+ 0.002 
+ 0.008 
+ 0.002 
+ 0.012 
Because of the intervals between holes are measured by an ordinary 
micrometer the accuracy is thought insufficient to investigate the film 
shrinkage with the accuracy of p. In spite of this, following conclusions 
can be deduced. 
a) The shrinkage of PET photographic film is less than 0.01%. 
b) The geometrical accuracy of TAC photographic film is rather un 
stable. 
2) Shrinkage test with a mesh plate 
a. Test materials: Each 3 negatives of PET (T-008A and T-008B) and 
Zusammen 
Von höchs 
nahmen isi 
male 
elektrischer Belichtungsmesser reale, auf Kammertyp und 
Emulsion abgestimmte Eichwerte zu erhalten, wird vorge 
schlagen, dieselbe mit Hilfe von Testaufnahmen durchzuführen. 
отсюда полезными диапазонами почверпений и экспозиций 
а также с диапазоном средних освещенностей объекта. Эти 
вопросы подробно рассматриваются в данной статье.
	        
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