A SERVICE OF

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3
To
read
proper
shooting
distance,
set
distance
scale selector
to
letter
shown
in
zoom
indicator
window.
TN
W
T-
.....
POWER
I
~:==
4.
Choose
and
set
aperture.
The aperture index window shows usable a
pe
rtur
es.
For example, w
it
h
film speed index set at I
SO
10
0 and t
he
zoom set r
in
g at N, and
if
you want
to shoot a
su
bject 3m away, you can select any apertu
re
from
112
to f/8.
You
can also dete
rm
ine apertu
re
usi
ng
the SB-20's guide number (
GN
).
For details, see page
32.
With Nikon F-
401
/N400
4,
use camera's aperture dial.
29