Nikon SB 27 Instruction Manual - Page 65

VI and F3-Series cameras - shoe mount flash

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VI and F3-Series cameras) NOTE Cameras in Groups I thru IV • In multiple flash operation, if the electric current in the synchro circuit exceeds a certain level, you may not be able to take a second shot after the first. In this case, turn each of the flash units OFF once or disconnect the master flash unit from the camera. This resets the circuits so you can resume shooting. • In multiple flash operation, take care that the combined total of the coefficient (numbers shown in parentheses below) for all flash units used at any one time does not exceed 20 at 20°C (68°F), or 13 at 40°C (104°F). Speedlight coefficients SB-80DX (1), SB-50DX (1), SB-30 (1), SB-29s/29 (1), SB-28/28DX (1), SB-27 (1), SB-26 (1), SB-25 (1), SB-24 (1), SB-23 (4), SB-22s (1), SB-22 (6), SB-21 (4), SB-20 (9), SB-17 (4), SB-16 (4), SB-15 (4), SB-14 (1), SB-11 (1), SB-140 (1) Coefficient numbers in parentheses above are in units of 70µA. TTL multiple flash operation using the Wireless Slave Flash Controller SU-4 (optional) • TTL multiple flash operation is possible by using the camera's built-in Speedlight or a Speedlight mounted on the camera's hot shoe as the master flash unit, and one or more Speedlights mounted on the Wireless Slave Flash Controller SU-4s as slave flash units. The SU-4's built-in light sensor not only detects when the master flash unit fires to trigger the slave flash unit, but also controls the flash duration of the slave flash unit in sync with the master flash unit. Manual multiple flash operation is also possible by setting the flash mode selector to manual (M). • These Nikon Speedlights are usable: SB-29s/29, SB-28/28DX, SB-27, SB-26, SB-25, SB-24, SB-23, SB-22s, SB-22, SB-20, SB-18, SB-16B, SB-15 • For more information, refer to the instruction manual provided with SU-4 the SU-4. 

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65
VI and F3-Series cameras)
NOTE
Cameras in Groups I thru IV
• In multiple flash operation, if the electric current in the synchro
circuit exceeds a certain level, you may not be able to take a
second shot after the first. In this case, turn each of the flash
units OFF once or disconnect the master flash unit from the
camera. This resets the circuits so you can resume shooting.
• In multiple flash operation, take care that the combined total of
the coefficient (numbers shown in parentheses below) for all
flash units used at any one time does not exceed 20 at 20°C
(68°F), or 13 at 40°C (104°F).
Speedlight coefficients
SB-80DX (1), SB-50DX (1), SB-30 (1), SB-29s/29 (1), SB-28/28DX (1),
SB-27 (1), SB-26 (1), SB-25 (1), SB-24 (1), SB-23 (4), SB-22s (1),
SB-22 (6), SB-21 (4), SB-20 (9), SB-17 (4), SB-16 (4), SB-15 (4),
SB-14 (1), SB-11 (1), SB-140 (1)
Coefficient numbers in parentheses above are in units of 70μA.
TTL multiple flash operation using the Wireless Slave Flash
Controller SU-4 (optional)
• TTL multiple flash operation is possible by using the camera’s
built-in Speedlight or a Speedlight mounted on the camera’s
hot shoe as the master flash unit, and one or more
Speedlights mounted on the Wireless Slave Flash Controller
SU-4s as slave flash units. The SU-4’s built-in light sensor not
only detects when the master flash unit fires to trigger the
slave flash unit, but also controls the flash duration of the
slave flash unit in sync with the master flash unit.
Manual multiple flash operation is also possible by setting the
flash mode selector to manual (M).
• These Nikon Speedlights are usable:
SB-29s/29, SB-28/28DX, SB-27,
SB-26, SB-25, SB-24, SB-23, SB-22s,
SB-22, SB-20, SB-18, SB-16B, SB-15
• For more information, refer to the
instruction manual provided with
the SU-4.
SU-4