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15
ASA FILM SPEED SETTING
t
Mak
e
it
a
rul
e to
set
t he
A SA film speed immedi-
ately
after loading
the
film
.
Whil
e
pressi
ng
the
ASA Fil
m
Speed
Setting
Lever, set it in al ignment
w it
h
the figure
corre-
spondin
g to t he
ASA speed ra
t
ing of th
e
film
in
use.
Mak
e sure
that
the
ASA film speed is set
properly
,
because
it
is
a fa ct or vi
tal
to obtaining
co
rr ect
exposure.
ASA Film Speed Rating
A
SA speed
ra
ting denot
es the
degree
of
light sen-
sitivity of th
e
film emul
sion.
It is clea
rly
spec i-
fi ed on
the
outer
box or
the inst
ru
ction sheet
w
h
ic
h
co
mes w
ith th
e
f ilm.
ASA/DIN Conversion Table
•
•
• •
•
•
• •
ASA 25 32 40 50 64 80
100 125
160 200 250 320
DIN
15 16 17 18
19 20 21
22
23 24 25
26
• •
400 500 640 800
27
28 29
30
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