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F
or
external
powe
r source-
_
For
ba
tter
ies
_
insi
de
the
co
nt
rol
l
er
4.
Select and set aperture.
When
the
S8-21
is
powered
by
batteries inside
the
controller, usable apertures are indicated
by
the aper·
ture indicator lines (excluding narrow line-end) which
intersect
th
e reproduction scal
e.
When
the S8-
21
is
powered
by
the
external power
source LA-2 or
LO
-2, usable apertures are indicated
by
the aperture indicator lines (including narrow line-end).
----
For a high reproduction ratio, use the smallest \
possible aperture for greater depth of field.
I
-- --
---
With
the
lens
in
reverse
position
:
For the desired reproduction ratio, follow
the
line from
the
red
reproduction ratio scale and read the usable
apertures.
For example, when the
S8-21
is
powered
by
batteries
inside
the
controller,
to
obtain a
4x
(4
:
1)
reproduction
ratio with I
SO
100
film and Mic
ro
-Nikkor 55mm f/2.8
lens
in
reverse position, use apertures from f/2.8
to
f
ill
.
36
With
lens in normal
position:
For
desired reproduction ratio, follow
the
line from
the
white reproduction ratio sca
le
and read the usable
apertures.
For
example,
when
the
S8-21
is
powered
by
batteries
inside the controller,
to
obtain a 1 :
10
reproduction ratio
with
ISO
100
film and Micro-Nikkor 55mm
112
.8 lens
in
normal position, use apertures from
f/4
to
f/16.
For
usable apertures with a reproduction ratio lower
than
1:
10
,
see
page
40
.
When the
S6
·
21
is powered by external
power
source:
For example,
to
obtain 4x reproduction ratio with
ISO
100
film
and
the
Mi
cro-Nikkor 55mm f/2.8
len
s
in
reverse position, usable aperture extends
to
f/2
.8
to
f/16
.
I
I
------
...
_---- ...
With
the
Condenser Adapter SW·S
attached:
The
usable aperture range shifts
to
1/2
stop
I smaller.
For
example,
to
obtain 4x reproduc-
I
tion
ratio with
ISO
100
film and
the
Micro-
I Nikkor 55mm
f/2
.8
lens
in
rever
se
position,
\
use
apertures from f/2.
8+
1/2
to
fill
+
1/2
.
...
------------*
\
I
I
I
I
I
I