Nikon D300 User Manual page 745

Contemplation – Courtesy of Richerd Reynolds
(slartybartfast)
Light is the photographer's friend!
Controlling light is the primary thing that separates excellent
from not-so-excellent photographers. On beautiful, balmy
summer evenings, the light wraps around the land and gives
us that so-called "golden hour" look that we crave. However,
some days are rainy and some are dark and gloomy.
As photographers we want to take pictures. We don't want to
stop just because the sun won't cooperate. We need light that
we can take with us, and we want it to be available quickly.
We need a Speedlight!
Fortunately, your D300(S) has a built-in Speedlight. The little
pop-up unit that's always with the camera is a Nikon
Speedlight flash. That's Nikon's name for its flash units, large
and small.
From the tiny pop-up that comes on your camera on up to the
flagship SB-900 flash, you have several choices. You can
even create a wireless flash array using your camera, a
commander unit, and several Speedlight flash units.
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