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a7 Built-in AF-Assist Illuminator
Use this setting to control whether to use the AF-assist lamp built into the Nikon
D7000, or rely on the more powerful AF-assist lamp built into Nikon electronic flash
units (like the Nikon SB-900) and the Nikon SC-29 coiled remote flash cord (for fir-
ing the flash when not mounted on the camera).
■ On. This default value will cause the AF-assist illuminator lamp to fire when light-
ing is poor, but only if Single-servo autofocus (AF-S) is active, or you have selected
the center focus point manually and either Single-point or Dynamic-area autofo-
cus (rather than Auto-area autofocus) has been chosen.
■ Off. Use this to disable the AF-assist illuminator. You’d find that useful when the
lamp might be distracting or discourteous (say, at a religious ceremony or acoustic
music concert), or your subject is located closer than one foot, eight inches or far-
ther than about 10 feet.
a8 Live View/Movie AF
Use this entry to set the focus mode when using Live View and when shooting movies.
You’ll find a complete description of when to choose each earlier in this book in Chapter
6. Your options are:
■ Autofocus mode. Select Single-servo AF or Full-time servo AF. Again, choose
Single-servo AF (AF-S) for relatively stationary subjects, or Full-time servo AF (AF-
F) for moving subjects. However, where AF-C mode (when using the optical
viewfinder) continues to refocus until you press the shutter release down all the way
to take a picture, AF-F refocuses at all times during Live View, and stops focusing
when you press the shutter release halfway.
■ AF area mode. Choose Face-priority AF (for scenes with human faces); Wide-area
AF (for scenes with objects throughout the frame); Normal-area AF (for average
subjects, generally centered in the middle of the frame); or Subject-tracking AF (for
moving subjects; the camera will lock focus and then refocus as your subject moves
within the frame).
b. Metering/Exposure
The orange-coded Metering/Exposure Custom Settings (see Figure 9.4) let you define
five different parameters that affect exposure metering in the Nikon D7000.
Chapter 9 ■ Setup: The Custom Settings Menu 285