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Guide number table
Zoom
Flash Mode Switch
Position
1/1
1/2
85 mm
36
25
70 mm
33
23
16.5
50 mm
30
21
35 mm
25
18
12.5
28 mm
22
16
24 mm
21
15
10.5
*20 mm
14
10
* With the wide - angle panel attached.
5
The distance up to the subject distance shown on
the bar graph is possible.
6
Check that the flash is ready and then take the
picture.
• If you fixed the distance, set the aperture
value as shown below.
《26》
ISO 100
1/4
1/8
1/16
1/32
1/1
18
12.5
9
6
50.9
11.5
8
5.5
46.7
15
10.5
7.5
5.4
42.4
9
6
4.3
35.4
11
8
5.5
4
31.1
7.5
5
3.6
29.7
7
5
3.5
2.5
19.8
ISO 200
Flash Mode Switch
1/2
1/4
1/8
1/16
1/32
35.4
25.5
17.7
12.7
32.5
23.3
16.3
11.3
29.7
21.2
14.8
10.6
25.5
17.7
12.7
8.5
22.6
15.6
11.3
7.8
21.2
14.8
10.6
7.1
14.1
9.9
7.1
4.9
Example:
If the flash zoom position is 35mm, subject
distance (between the SEF-36PZF and subject)
is 3 m, and ISO is 100, the calculation will be as
follows:
With flash output [1/1], the Guide No. will be
①
25 (according to the Guide No. table).
② Aperture =
ISO 400
Flash Mode Switch
1/1
1/2
1/4
1/8
8.5
72
50
36
7.8
66
46
33
7.6
60
42
30
6.1
50
36
25
5.7
44
32
22
5.1
42
30
21
3.5
28
20
14
Guide No. 25
가이드 넘버 25
Subject distance 3 m
= Approx. 8 (f/No.)
1/16
1/32
25
18
12
23
16
11
21
15
10.8
18
12
8.6
16
11
8
15
10
7.2
10
7
5
= 8.3
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