14-S 10/302-1 
ein Gammi 
sich nach fi 
!g ^Soll = *£ 
Im angefül 
aufnahme 
erhält man 
Die aus de 
lichtungsze 
lichtungsm 
die Grundk 
Wichtig ist 
effektive E 
Empfindlic 
ab weichen 
Voraussetz) 
schriebene 
dem Benut 
toren beka 
Bedingung' 
usw. zu bei 
Anmerkung 
Zungen un 
teten Lieh 
zungen sini 
Schrifttum 
[1] Tbaen] 
nahmen. Z 
[2] Michai 
Moskau 19. 
[3] Deutscl 
Skalen, Ka 
[4] Brock, 
grafie (eng] 
[5] ÜARIHi 
sions. J. 0 
[6] Howle 
Speed of i 
A, 24, 1—'i 
[7] Zeth, 1 
zeit für Le 
und Photo« 
[8] Cabma: 
of Fine De 
305. 
[9] Carmai 
photogram 
sehe Teste 
XIII-4, Ar 
[10] Fries 
kleiner De 
Korr., Wie 
(1956) Nr. ■ 
[11] Gost 
fische Mat« 
allgemeinsi 
dard-Korm 
122 
7. Rewinding developing instruments 
Some of the test strips (optical wedges) pasted at the top, middle and end 
of each film roll to confirm the degree of development had been torn off during 
the development. So we can show the data of Gammas by two companies only. 
Company 
Top 
Middle 
End 
Film 
length 
Pacific A. S. Со., Ltd. 
0.65 
0.78 
0.77 
30 m 
Toyo Koku Jigyo Со. Ltd. 
0.52 
0.66 
0.52 
29 m 
From these data we could confirm that the degree of development is not 
uniform by the use of rewinding developing instruments. 
The data of Toyo Koku Jigyo Co., Ltd., by which test strips were paste4 at 
15 cm distance from each end of the film, warn that 0.5~1 m of excess film 
must be provided for the developing. 
V. Conclusion 
The results of our test are summarized as follows: 
1. There are no difficulties for the application of PET film to the aerial 
photography by the ordinary treatment for TAC film. 
2. Some of the photographic characteristics of the new film are improved 
better than KOK film. 
3. The laboratory test proves much improved physical properties of the 
new film. In spite of this its apparent irregular shrinkage measured by the 
relative orientation remained equivalent to that of TAC film. 
The result proves on the one hand the practical applicability of the new 
film as it is. 
On the other hand the discrepancy between the laboratory test and the 
relative orientation test is judged due to the uneven flattening of the new film 
at the exposure by the improper suction in aerial cameras, because of no special 
consideration for the much increased stiftness of the PET film was taken by 
this test. We expect that far better geometrical precision will be gained by 
the adoption of the proper measures for PET film. 
Zusammen 
Von höchs 
nahmen is 
male Belic 
elektrischer Belichtungsmesser reale, auf Kammertyp und 
Emulsion abgestimmte Eichwerte zu erhalten, wird vorge 
schlagen, dieselbe mit Hilfe von Testaufnahmen durchzuführen. 
отсюда полезными диапазонами понверпештй И экспозиций 
а также с диапазоном средних освещенностей объекта. Эти 
вопросы подробно рассматриваются в данной статье.