Nikon 4804 Camera Accessories User Manual


 
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5 Flash output level compensation
You can make exposure compensation for the flash illuminated subject
without affecting the background exposure by modifying the flash unit’s
flash output level.
Setting the flash output level compensation
As a basic guide, some plus compensation may be necessary to make the main
subject brighter. Likewise, some minus compensation may be required to make
the main subject darker.
In TTL auto and Auto Aperture flash operations (with the
SB-800)
Making exposure compensation for a flash illuminated main subject by adjusting
the SB-800’s or Commander SU-800’s flash output level compensation value.
Compensation values can be set in 1/3 step increments or decrements from +3.0 to
-3.0 EV.
Flash output level compensation cannot be canceled by turning the flash unit off. To
cancel, return the compensation value to “0”.
With SLR cameras featuring a built-in flash with an exposure compensation function, you
can compensate the flash output level on either the camera or the SB-800 or SU-800 flash
unit. (For details, see your camera’s instruction manual.) If you use both controls, the
exposure is modified by the sum total of both compensation values.
In this case, the LCD panel of the flash unit (SB-800 or SU-800) shows only the
compensation value set on the flash unit (SB-800 or SU-800).
In Manual flash mode
Making exposure compensation for only the flash illuminated subject by
intentionally modifying the flash unit’s flash output level.
Notes on performing Auto Aperture flash operation with the
SB-800.
Depending on shooting circumstances, underexposure may occur. Using the
TTL auto flash mode is recommended when using a camera compatible with TTL
auto flash.