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Nikon SB 20 - Page 29

Nikon SB 20
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Usable
apertures/shooting distance
range
in
A
mode
Unit: m (It)
ISO film speed
Shooting distance range
1600 800 400 200
100
50 25
Zoom set Zoom set Zoom set
atW
at N a
fT
8
5
.6
4 2
.8
2
1.4
1.4-
11
1.9 - 15
2.3-
18
-
(4.6-36)
(6
.2-
49) (7.
5-59)
tl
8 5.6
4
2.8 2
1.4
1.
0-7.8
1.
3-10
1.6-12
(3.3-26)
(4.3
-33)
(5.2-39)
D.
0.7 - 5.5
1-7
.5
1.2-9
0
16
11
8 5.6
4 2.8
2
~
(2
.
3-18)
(3
.3 - 25) (3
.9-30
)
22 16
11
8 5.6
4
2.8
0.
6-3
.9 0.7 - 5.3
0.8-6.3
(20-13)
(2.3-17)
(
2.
6
-2
1)
32 22
16
11
8
5
.6
4
0.
6-2.7
0.6
-3.7
0.6-4.5
(2
.
0-89)
(2.
0-
1
2)
(2.0-15)
Exposure
compensation
in
A
mode
With a
da
rk
background (one with low reflec
ti
vity) or
one that
is
li
ght
in
tone (having high reflectivity), over-
or underexposure may occur. To prevent this, compen-
sa
te
exposure by stopping down or opening aperture.
With a dark background, stop down the aperture
1/2 to
one full f/stop; w
hen
the background is
li
ght
in
tone,
open the aperture
11
2
to
one full f/stop.
With the
Ni
ko
n
F-401
/N4004, s
et
aperture
us
ing
the
camera's aperture dia
l.
27