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Manual ÉG mode
In this mode, the flash always fires at a specified output. The SB-80DX
features three types of manual modes.
Types Usable camera
Manual flash No limitation
Repeating flash No limitation
FP High-Speed Flash sync
F5, F100, F90X/N90s, F90-Series/N90, D1-Series
m You can calculate the correct aperture by using the guide number table and
the shooting distance. Then set the same aperture manually on the lens.
In this case, set the camera’s exposure mode to Aperture-Priority Auto (A) or
Manual (M).
nRefer to your camera’s instruction manual for details on camera and lens aperture
settings.
nIf the camera’s exposure mode is set to other than Aperture-Priority (A) or Manual (M)
mode, the shutter may not be released, depending on the cameras in use. For details,
refer to your camera’s instruction manual.
nIn the Manual mode, no warning ready-light blinks to indicate that the light may have
been insufficient for correct exposure after shooting.
lDetermining the aperture and flash output level in the
Manual mode
m In the Manual mode, use the guide number table and the following equation
to calculate the aperture, flash output level, and shooting distance to obtain
the correct exposure.
nThe guide number (GN at ISO 100; m/ft) indicates the amount of light generated by the
flash. The larger the number, the greater the flash output.