Nikon Speedlight SB-600 - Manual (Page 57)

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v Notes on performing multiple flash (common to both wireless
and wired operation)
• To avoid accidental firing, turn off the camera and all flash units before mounting the
master flash unit on or connecting it to the camera.
• The SB-600’s, SB-800’s and SB-80DX’s standby functions are canceled while the
SB-50DX’s standby duration is prolonged to approx. one hour when they are set to
wireless remote flash mode.
• Set the angle of coverage of the remote flash units wider than the picture angle, so that
the subject will receive sufficient illumination even when the angle of the flash head is off
axis from the subject. (In Advanced Wireless Lighting, the zoom-head position is
automatically set to 24 mm, except when the wide-flash adapter is attached.)
Remember, the closer the subject, the wider the angle of coverage required.
• The brightness of the flash illumination is inversely proportional to the square of the
distance between the flash unit and the subject. For example, if the distance between
Speedlight A and the subject is 1 m (3.3 ft.), and Speedlight B is 2 m (6.6 ft.), the
combined brightness of the two Speedlights will be:
A : B = 1 2 : 2 2 = 1 : 4 (in meters) or 3.3 2 : 6.6 2 = approx. 11 : 44 (in feet)
Therefore, the illumination provided by Speedlight A is four times (or two steps) brighter
than that provided by Speedlight B.
• To ensure good results, it’s recommended to make test shots before shooting
important events.
• Be sure to read the instruction manuals of your camera and Speedlight(s) before use.
Adv
anced oper
ations