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Electronic construction
Automatic Insulated Gate Bipolar Transistor (IGBT)
and series circuitry.
Angle of coverage Horizontal position
Vertical position
Guide number (at 20˚C/68˚F)
(at ISO 100: for m/ft)
For Guide numbers for 1/300 TTL High-Speed Sync
Flash in AUTO flash mode (F5 camera only), see page 40.
Flash head The flash head rotates from the horizontal to the
vertical position along a 180° arc.
Flash mode selector OFF / M / AUTO
• Power turns ON when set to "M" or "AUTO" position.
• Standby function works when set to "M" or "AUTO"
position (set camera setting switch to K); power
automatically turns OFF after approx. 80 seconds
when both SB-27 and camera are not in use.
Angle of coverage
Vertical Horizontal
Covering the picture angle of 24mm lens
60° 78°
Covering the picture angle of 28mm lens
53° 70°
Covering the picture angle of 35mm lens
46° 60°
Covering the picture angle of 50mm lens
36° 46°
Specifications
Angle of coverage
Vertical Horizontal
Covering the picture angle of 35mm lens
78° 60°
Covering the picture angle of 50mm lens
60° 46°
Covering the picture angle of 70mm lens
46° 36°
Zoom-head position
Light
24mm
28mm
35mm 50mm
Output
(normal)
1/1 (full) 25/82 27/89 30/98 34/112
1/2 17.7/58 19/62 21.2/69 24/79
1/4 12.5/41 13.5/44 15/49 17/56
1/8 8.8/29 9.5/31 10.5/34 12/39
1/16 6.2/20 6.7/22 7.4/24 8.5/28