Publicité
Infrared Photography
I
n
case
of infrared
ray
photography usi
ng
the infrared
ray f
il
m
in
comb
ination
w
ith
the
red f
il
ter, focus must
be secured
in
the normal
manner and then
compensated
accord
ingly in
order
to
obta in sharp
images.
Th
e
Yashica
ML and
Ze
iss
T
* lenses
feature
R
index
perm itt ing ready
co
mpensat
ion of
focus.
First, secure
f
ocus
in
th
e
norma
l
manner
w
ithout using
the fi
lter
.
Then,
read off
th
e
subject d istance and
ali
gn
it
w
ith
the
R index.
After making
t
his
compensat
ion,
moun
t
the
f
il
ter over the
lens
.
•
A
lways use the red
f
il
ter
when
attempting
infrared ray
photography
.
•
For correct
exposu
re sett ing, refer to the instructions
accompany ing
the
infrared ra
y
f
il
m.
70
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