Nikon 4543 Instruction Manual - Page 32

With ASAIISO

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-CONTROLS IN DETAIL-continued---------- Now, you are ready to read the usable f/stop from the dial. Each color-coded line indicating the auto shooting range for each f/stop has a notch on it. Find the notch directly above the flash-to-subject distance and read the f-number at the end of the line. Example With ASAIISO 100, zoom head set at N for 35mm lens, a subject 2m (6 .6 ft.} away, the aperture is approx. f/4. With a subject 4m (13 ft.) away, the aperture is f12. Without referring to the exposure calculator dial, you can also determine the f/stop by using the guide number equation found on page 30. The guide number at various film speeds and zoom head settings is shown in the following table: Guide numbers in the MD mode Unit· m(tt) Zoom head setting T 800 30(98) ASAIISO film speed 400 200 10 0 50 21 (69) 14 (46) 10 (33) 7 (23) 25 5 (16) 5 27 (89) 19 (62) 13 (43) 9.5 (31) 6.7 (22) 4.7 (15) N 22(72) 16 (52) 11 (36) 8 (26) 5.6 (18) 4 (13) W, 19 (62) 13 (43) 9.5 (31) 6.7 (22) 4.8 (16) 3.3(11) W2' 12 (39) 8.4 (28) 5.9(19) 4.2 (14) 3 (98) 2.1 (6.9) • W2is used when the wide· flash adapter is attached to the flash unit with the zoom head set at W,. 32

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-CONTROLS
IN
DETAIL-continued----------
Now,
you are ready to read the usable
f/stop
from the
dial. Each color-coded line indicating the auto shooting
range for each
f/stop
has a notch
on
it.
Find the notch
directly above the flash-to-subject distance and read
the f-number at the end of the line.
Example
With ASAIISO
100,
zoom head set at N for 35mm lens,
a subject 2m
(6
.6 ft.} away, the aperture
is
approx.
f
/4.
With a subject 4m
(13
ft.) away, the aperture
is
f
12.
Without referring to the exposure calculator dial, you can
The
guide number at various film speeds
and
zoom head
settings
is
shown
in
the following table:
Guide numbers in the MD mode
Unit
·
m(tt)
Zoom head
ASAIISO film speed
setting
8
00
400
2
00
100
50
25
T
30(98)
21
(69)
14
(46)
10 (33)
7
(23)
5
(16)
5
27
(89)
19 (62)
13
(43)
9.5 (31)
6.7 (22)
4.7
(15)
N
22(72)
16 (52)
11
(36)
8
(26)
5.6 (18)
4
(13)
W,
19
(62)
13
(43)
9.5 (31)
6.7 (22)
4.8 (16)
3.
3(11)
W
2'
12 (39)
8.4 (28)
5.
9(19)
4.2 (14)
3
(98)
2.1 (6.9)
also determine the
f/stop
by
using the guide number
•
W2
is
used when the wide· flash adapter
is
attached to the flash unit
equation found
on
page
30.
with the zoom head set
at
W
,.
32