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David Busch’s Nikon D7000 Guide to Digital SLR Photography410
Figure 12.8
Icons for flash
sync modes
include front
sync (top left),
rear sync (top
middle), red-
eye reduction
(top right),
slow sync
(lower left),
and slow sync
with red-eye
reduction
(lower right).
4. Check exposure. Select a shutter speed when using Manual, Program, or Shutter-
priority modes; select an aperture when using Aperture-priority and Manual expo-
sure modes.
5. Preview lighting. If you want to preview the lighting effect, press the depth-of-
field button to produce a modeling flash burst (unless you’ve redefined this control
in the Custom Settings menu as described in Chapter 9).
6. Lock flash setting (if desired). Optionally, if the main subject is located signifi-
cantly off-center, you can frame so the subject is centered, lock the flash at the expo-
sure needed to illuminate that subject, and then reframe using the composition you
want. Lock the flash level using the Flash Value Lock button (which is, by default,
the Fn button, but can also be assigned to the Fn, Preview, or AE-L/AF-L buttons
in CSM #f3, CSM #f4, or CSM #f5). Press the FV lock button, and the flash will
emit a pre-flash to determine the correct flash level, and then the D7000 will lock
the flash at that level until you press the FV lock button again to release it. FV lock
icons appear in the monochrome LCD status panel and the viewfinder.
7. Take photo. Press the shutter release down all the way.
8. D7000 receives distance data. A D- or G-series lens now supplies focus distance
to the D7000.
9. Pre-flash emitted. The internal flash, if used, or external flash sends out one or two
pre-flash bursts. One burst can be used to control additional wireless flash units in
Commander mode, while one burst is used to determine exposure.
10. Exposure calculated. The pre-flash bounces back and is measured by the 2,016-
pixel RGB sensor in the viewfinder. It measures brightness and contrast of the image
to calculate exposure. If you’re using Matrix metering, the D7000 evaluates the
scene to determine whether the subject may be backlit (for fill flash), a subject that
requires extra ambient light exposure to balance the scene with the flash exposure,