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MANUAL FLASH
When the camera is set to manual exposure,
manual flash can be set to suit the subject distance
and aperture. The manual flash output can be set to
1/1, 1/2, 1/4, 1/8, 1/16, or 1/32. Manual flash mode
can be used with all cameras (except SF 7, refer to
page 27).
35
mm
A.Zoom
M
mm
0.7 1 1.5 2
3
4
6
8
12 16 22m
2.3
5
10
20
40
70ft
3
6
2
1
30
I Procedure
1
Turn on the power switch.
2
Press the flash mode button [MODE] to display
[M] [1/xx] on the LCD panel.
• You can set the flash output from 1/1 to
1/32. See page 46.
• When the autofocus or 645N camera's
exposure mode is set to any mode except
manual or trailing - shutter - curtain - sync
mode, TTL auto flash will be set
automatically.
3
Set the flash zoom position to match the lens
focal length.
• With an autofocus lens, [A.Zoom] will be
set automatically.
4
Set the lens aperture.
Guide number table
Film speed ISO 100
Zoom
Flash Mode Switch
Position
1 / 1
1 / 2
1 / 4
1 / 8
1 / 16
85 mm
36
25
18
12.5
9
70 mm
33
23
16.5
11.5
8
50 mm
30
21
15
10.5
7.5
35 mm
25
18
12.5
9
6
28 mm
22
16
11
8
5.5
24 mm
21
15
10.5
7.5
5
*20 mm
14
10
7
5
3.5
* With the wide - angle panel attached.
• For the flash zoom position for 645 and 67 camera lenses, see the camera's picture format on page 15.
5
The distance up to the subject distance shown
on the bar graph is possible.
6
Check that the flash is ready, then take the
picture.
Example:
If the flash zoom position is 35mm, subject
distance (between the AF360FGZ and subject)
is 3 m, and film speed is ISO 100, the
calculation will be as follows:
q With flash output [1/1], the Guide No. will be
25 (according to the Guide No. table).
w Aperture = Guide No. 25 / Subject distance 3
m = 8.3 Approx. 8 (f/No.)
Film speed ISO 400
Flash Mode Switch
1 / 32
1 / 2
1/1
1/2
1 / 4
1 / 8
1 / 16
6
72
72
50
36
25
5.5
66
66
46
33
23
5.4
60
60
42
30
21
4.3
50
50
36
25
18
4
44
44
32
22
16
3.6
22
42
30
21
15
2.5
28
28
20
14
10
Guide Number ( GN )
Guide numbers indicate flash light intensity. The
larger the number, the farther you can reach with
your flash. From the guide number, you can easily
obtain the proper aperture setting required for an
optimum exposure.
Aperture [f-number] =
GN/flash-to-subject distance [m]
Example : GN33/3m = f11
• With autofocus cameras (except the SF series)
attached with an FA J, FA or A lens and the
645N, 645NII cameras, a bar graph displayed
on the LCD panel will indicate the approximate
flash range.
1 / 32
18
12
16
11
15
10.8
12
8.6
11
8
10
7.2
7
5
31
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