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16
I
n order to
obtai
n
perfect
ex posure of
the
prime
subj
ect
when shooting against
light
,
it
is necessa
ry
to
give
from
twice
to
four
times the normal
ex
posure.
The range
of exposure
adjustment in
thi
s case depends
upon
the
intensity of the
light
in
th
e
background
.
1.
I
n case the
I ight
in
the
backgrou
nd
is of
compa
ratively
low
intensity, open the
lens
aperture by one setting.
If th
e co
rrect
exposu
re
setting is
f/1
1
at
1/
125
sec.,
set the aperture at
f/S.
2.
I
n case of exceedingly
bright background
;
open the
lens
aperture
by
two
settings.
If
correct
exposure
determined according to
normal
method
is
f/11 at 1/125 sec.,
turn
the
aperture
ring
and adjust the
ape
rture
setting
to f/5.6
Note:
See footnote on page
14
.
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