Reference Manual

615
Using an On-Camera Flash
D
i-TTL Flash Control
When an optional flash unit that supports the Nikon Creative Lighting
System is attached and set to TTL, the camera uses monitor pre-flashes for
balanced or standard “i-TTL fill-flash” flash control. i-TTL flash control is
not available with flash units that do not support the Nikon Creative
Lighting System. The camera supports the following types of i-TTL flash
control:
•
Standard i-TTL fill-flash is activated automatically when [Spot
metering] is selected.
Flash control Description
i-TTL balanced
fill-flash
The camera uses “i-TTL balanced fill-flash” flash control
for a natural balance between the main subject and
ambient background lighting. After the shutter-release
button is pressed and immediately before the main
flash, the flash unit emits a series of monitor pre-
flashes which the camera uses to optimize flash output
for a balance between the main subject and ambient
background lighting.
Standard i-TTL
fill-flash
Flash output is adjusted to bring lighting in the frame
to a standard level; the brightness of the background is
not taken into account. Recommended for shots in
which the main subject is emphasized at the expense
of background details, or when exposure
compensation is used.