Nikon N90 AF - Balanced Fill-Flash; Center-Weighted;Spot Fill-Flash; Standard Til Flash

CENTER-WEIGHTED/SPOT FILL-FLASH
If you are using a lens without CPU (a lens other than AF Nikkor
and AI-P-Nikkor), Center-Weighted Fill-Flash and Spot
Fill - Fl ash
are performed as Automatic Balanced Fill-Flash. Although the
TIL Multi-Sensor is not used, flash output is properly
compensated to produce a natural fill-flash effect.
STANDARD TTL FLASH
In Standard TIL Flash, automatic flash output level
compensation is not availabl
e. This means that, although the
main subject
is correctly exposed, the background may not be.
With SB-25 or SB-24, Standard
TIL a ll ows you manual
selection
of flash output level compensation instead of having
the computer
do it automa ti cally. So, with SB-25 or SB-24, you
can intentionally cancel Automatic Balanced
Fill -Flash by
pressing the Speedlight's M button.
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