Specifications – Nikon SB-28 User Manual

Page 91

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91

Automatic Insulated Gate Bipolar Transistor (IGBT) and
series circuitry.

• See page 51 for details on guide numbers in FP High-

Speed Sync Flash and see also page 30 for details on
guide numbers in 1/300 TTL High-Speed Sync Flash.

(Variable in 6 steps, plus 2-steps with built-in wide flash
adapter)

Specifications

Electronic
construction

Guide number

Angle of
coverage

Flash
output
level

1/1 (full)

1/2

1/4

1/8

1/16

Zoom-head position

24mm 28mm

35mm 50mm

70mm

85mm

30/98

32/105 36/118 42/138

48/157

50/164

21/69

22.5/74 25.5/84 30/98

34/112

36/118

15/49

16/53

18/59

21/69

24/79

25/82

10.5/35 11.3/37 12.7/42 15/49

17/56

18/59

7.5/25

20mm

20/66

14/46

10/33

7/23

5/16

18mm

18/59

12.7/42

9/30

6.4/21

4.5/15

8/26

9/30

10.5/35 12/39

12.7/42

1/32

1/64

5.3/17

3.5/11

3.2/10

5.7/19 6.4/21 7.5/25 8.5/28 9/30

3.8/13

2.5/8

2.3/8

4/13

4.5/15 5.3/17 6.0/20 6.3/21

(ISO 100, m/ft)

Zoom-head position

18mm (with built-in
wide flash adapter in
place)

Angle of coverage

Horizontal

90

°

Vertical

102

°

20mm (with built-in
wide flash adapter
in place)

85

°

98

°

24mm

60

°

78

°

28mm

53

°

70

°

35mm

45

°

60

°

50mm

34

°

46

°

70mm

26

°

36

°

85mm

23

°

31

°

Flash head in horizontal/front position

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