Nikon SB-26 Instruction Manual - Page 67

TTL Multiple Flash Photography • Use the TTL multiple flash terminal for connecting other Speedlights via optional sync cords. • You can use one Speedlight for the master flash unit and up to four other units for slaves. See the chart on pages 134 to 135 to confirm available Speedlights for master and slave use. • Note the following when using an F90-Series/N90 camera for TTL Auto Flash operation with multiple Speedlights: a. Use the SB-26 as a slave flash unit whenever possible, or b. When using the SB-26 as master, avoid Monitor Preflashes* by (1) performing Standard TTL Flash, (2) upward tilting or rotating the flash head (the distance indicator bars / disappear), or (3) using a lens other than AF Nikkor (including D-type) or AI-P lenses to perform Center-Weighted or Spot Fill-Flash. * Because 3D Multi-Sensor and Multi-Sensor Balanced Fill-Flash take advantage of the SB-26's Monitor Preflash and the camera's TTL Multi-Sensor, it is difficult to manage such fill-flash operations for TTL Multiple Flash 132 Photography, especially when using the SB-26 as a master flash unit with other slave flash unit(s). The Sensor system is designed to analyze Monitor Preflash reflection from a single SB-26 (ideally, mounted on the camera) and to control light output from that particular unit, but not from the other slave(s). • Use optional Multi-Flash Sync Cord SC-18 (1.5m) and/or SC-19 (3m) to connect flash units via the SB-26's TTL multiple flash terminal. Remove the rubber cover to use. • Use optional TTL Remote Cord SC-17 or SC-24* for use with the SB-27, SB-23, SB-22, SB-21B, SB-20 and/or SB-15 as a master flash unit. * Used for F5 with the DW-30/DW-31 attached or for F4-series with the DW-20/ DW-21 attached. • Use optional TTL Multi-Flash Adapter AS-10 for use with the SB-27, SB-22, SB-21B, SB-20 and or SB-15 as a slave flash unit. • Use optional TTL Remote Cord SC-23 for use with the SB-140, SB-14 and/or SB-11. • The SB-11/14/140 (even with SC-23) or SB-21B cannot be used for TTL multiple flash photography with the F-401/ N4004 and F-401s/N4004s. • Use the ON position to activate a slave flash unit; the STBY does not function (SB-26, SB-25, SB-24, SB-22 and SB-20). The SB-23 offers only OFF and TTL/STBY positions for power switching. This means it cannot be used as a slave. • Select Forced TTL mode when using SB-27 as a slave flash unit. Chapter 4 Multiple Flash Photography When a second shot cannot be taken (F5, F90X/ N90s, F90-Series/N90, F70-Series/N70, F4-Series, F-801/N8008, F-801s/ N8008s, F-601/N6006, F-601M/ N6000, F50-Series/N50, F-401x/ N5005, and F-501/ N2020) For multiple flash photography, if the electronic current in the synchro circuit exceeds a certain level, you may not be able to take a second shot after taking the first shot. Take care that the combined total of the coefficients (numbers shown in parentheses below) for all Speedlights used at any one time does not exceed 20 at 20°C (68°F), or 13 at 40°C (104°F). If you are unable to take a second shot, disconnect the master Speedlight from the camera, or turn each of the Speedlights off once. This resets the circuits so you can resume shooting. Speedlight coefficients SB-27 (1) SB-26 (1) SB-25 (1) SB-22 (6) SB-21 (4) SB-20 (9) SB-17 (4) SB-16 (4) SB-15 (4) SB-11 (1) SB-24 (1) SB-19 (2) SB-14 (1) SB-23 (4) SB-18 (16) SB-12 (1) Manual Multiple Flash Photography • Use the sync/multiple flash terminal for connection with other Speedlights via optional sync cords. • Use optional Sync Cord SC-11 or SC-15. • Set and use Manual i Flash mode on each Speedlight for correct exposure. 133