with a bit of experience in choosing settings. Many seasoned photographers leave their
D7000 set on A all the time. The exposure indicator scale in the status panel and
viewfinder indicate the amount of under- or overexposure.
Shutter-Priority
Shutter-priority (S) is the inverse of Aperture-priority: you choose the shutter speed
you’d like to use, and the camera’s metering system selects the appropriate f/stop. Perhaps
you’re shooting action photos and you want to use the absolute fastest shutter speed
available with your camera; in other cases, you might want to use a slow shutter speed
to add some blur to a sports photo that would be mundane if the action were completely
frozen. (See the ends of the hockey sticks in Figure 4.14.) Shutter-priority mode gives
you some control over how much action-freezing capability your digital camera brings
to bear in a particular situation.
You’ll also encounter the same problem as with Aperture-priority when you select a shut-
ter speed that’s too long or too short for correct exposure under some conditions. I’ve
Chapter 4 ■Getting the Right Exposure 113
Figure 4.14 Lock the shutter at a specific speed to introduce blur into an action shot.