Pentax 645 645 Manual - Page 63

Pentax 645 Manual

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INFRARED INDEX MARK 1 II ft CO tar 3 7 22 IB I AC CT8I A 22 16 I ft a) 1 7 I nu 22 18 8 4 4 8 I MF IR A 22 16 .6 • 1. Adjust the distance scale (set at the "in-focus" point). 2. Then move to the red infrared index mark. In the taking of infrared photographs using infrared film and R2 or 02 filter, it will be necessary to compensate for the difference between the visible light and infrared light focus. As illustrated, read the camera-to-subject distance on the distance scale of the lens while focusing through the viewfinder; turn the focusing ring until the distance setting aligns with the red infrared index marking (red line). The picture shows an example where the camera-to-subject distance is set at infinity (co). For exposure control required in infrared photography, refer to the instructions contained in the film package. 61

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INFRARED
INDEX
MARK
ft
22
CO
I
B
I
AC
TI
C
8
A
22
16
1
II
tar
3
7
I
ft
a)
1
7
I
MF
I
nu
22
18
8
4
4
8
IR
A
22
16
.6
•
1.
Adjust
the
distance
scale
(set
at
the
"in
-focus"
point).
In
the
taking
of
infrared
photographs
using
infrared
film
and
R2
or
02
filter,
it
will
be
necessary
to
compensate
for
the
difference
between
the
visible
light
and
infrared
light
focus.
As
illustrated,
read
the
camera
-to
-subject
distance
on
the
distance
scale
of
the
lens
while
focusing
through
the
viewfinder;
turn
the
focusing
ring
until
the
distance
setting
aligns
with
the
red
infrared
index
marking
(red
line).
The
picture
shows
an
example
where
the
camera
-to
-subject
distance
is
set
at
infinity
(co).
2.
Then
move
to
the
red
infrared
index
mark.
For
exposure
control
required
in
infrared
photography,
refer
to
the
instructions
contained
in
the
film
package.
61