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Technical operation/Effective Speedlight placement
lConnecting the master and slave flash units
m Refer to “System chart for TTL multiple flash” (p. 80). Also see the instruction
manuals of your cameras, Speedlights, and accessories.
nUse the optional TTL Remote Cords SC-18 or SC-19 to connect the SB-80DX to more
than one slave flash unit.
nUse the optional Multi-Flash Adapter AS-10, if the slave flash units are not equipped with
multiple flash terminals.
nUse optional Multi-Flash Adapter AS-10 to attach the slave flash unit(s) to a tripod.
lThe maximum number of flash units to be connected
using cords
m Up to five units including the master flash unit can be used for multiple flash
photography at a total cable length of 10m (33 ft.).
nMake sure the combined total of the coefficients in the table below for all flash units used
together does not exceed 20 at 20°C (68°F) or 13 at 40°C (104°F).
nIf it exceeds these figures, you may not be able to take a second shot after the first one.
In this case, turn off the power of all flash units and reduce the total number of flash units
connected.
Speedlight Coefficient
SB-80DX, SB-50DX, SB-30, SB-29, SB-29s, SB-28, SB-28DX,
SB-27, SB-26, SB-25, SB-24, SB-22s, SB-14, SB-11, SB-140
1
SB-23, SB-21, SB-17, SB-16, SB-15 4
SB-22 6
SB-20 9