exactly where to measure exposure when using the optical viewfinder. However, if a non-
CPU lens is mounted, or you have selected Auto-area AF, only the center focus point is
used to spot meter.
You’ll find Spot metering useful when you want to base exposure on a small area in the
frame. If that area is in the center of the frame, so much the better. If not, you’ll
have to make your meter reading for an off-center subject using an appropriate focus
point, and then lock exposure by pressing the shutter release halfway, or by pressing
the AE-L/AF-L button. This mode is best for subjects where the background is signif-
icantly brighter or darker, as in Figure 4.12.
David Busch’s Nikon D7000 Guide to Digital SLR Photography110
Figure 4.12
Spot metering
allowed meas-
uring exposure
from this per-
former’s face.