Nikon D300 User Manual page 349

However, now you can use wide apertures to isolate your
subject in direct sunlight—which requires high shutter speeds.
The flash will adjust and provide great fill light, if you're
using Auto FP
One thing to note: If your flash fires at full power in normal
modes, it will blink the flash indicator in the
you know that all available flash power has been dumped, and
you need to check to see if the image is underexposed. When
the camera is firing in
doesn't happen. You'll get no warning in the
the image does not have enough light. Check the camera's
histogram often when using
Special Shutter Speed Setting X + Flash
Sync Speed
When using exposure modes
auto (S)—if you crank the shutter speed all the way down to
30 seconds, then to bulb—there is still one more setting
below bulb, named
allows you to set the camera to a known shutter speed and
shoot away. You will see
sync speed is set to
select will show up after the X. If you selected a
speed of 1/125
up as the next setting below bulb. Selecting a
speed of 1/60 s
The shutter speed will not vary from your chosen setting. The
camera will adjust the aperture and flash when in
Shutter-priority auto
while the flash controls exposure in
high-speed sync mode.
Auto FP
Auto
X + Flash sync
X 250
1/250 s. Whatever
s, then X 125 will show
means that X 60
(S) mode, or you can adjust the aperture
349
high-speed sync mode, that
FP.
Manual (M) or
speed. This special setting
if Custom Setting e1 > Flash
Flash sync speed
will show up below bulb, etc.
Manual (M) mode.
Viewfinder to let
Viewfinder
Shutter-priority
you
Flash sync
Flash sync
if