Nikon N90 instruction manual 126

NOTES ON FLASH PHOTOGRAPHY

•Use only Nikon 8peedlights. Other units may damage the camera'selectrical circuits due to incompatible voltage requirements',electric contact alignment or switch phase.

•Not compatible with 250Vor higher.

•When using a special 8peedlight such as a studio strobe system, with a time-lag provision or one with a long flash duration (i.e., Medical-Nikkor 120mm f/4), adjust shutter speed down to 1/125 sec. or slower.

•For multiple flash photography using the N90, if the electric current in the syncro 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 coefficient (numbers shown in parentheses below) for all 8peedlights used at any one time does not exceed 20 at 20·C/68·F or 13 at 40'C/104·F.

88-25 (1) 88-24 (1) 88-23 (4) 88-22 (6)

88-21 (4) 88-20 (9) 88-19 (2) 88-18 (16)

88-17 (4) 88-16 (4) 88-15 (4) 88-14 (1)

88-12(1) 88-11(1)

If you are unable to take a second shot, disconnect the master 8peedlight from the camera, or tum each of the 8peedlights off and on at once. This resets the circuits so you can resume shooting.

This also applies when using any non-Nikon studio speedlight system.

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