Viewfinder Options; Viewfinder Grid; Rangefinder; Using The Electronic Rangefinder - Nikon D3000 User Manual

Display a framing grid in the viewfinder or choose whether the exposure indicator in
the viewfinder can be used as a focusing aid in manual focus mode.
II Viewfinder Grid
Choose On to display on-demand grid lines in the viewfinder for
reference when composing photographs.
II Rangefinder
Choose On to use the exposure indicator to determine whether the camera is
correctly focused in manual focus mode (_ 42_ note that this function is not available
in shooting mode M, when the exposure indicator instead shows whether the subject
is correctly exposed).
_ Camera in focus.
Focus point is slightlyin
front of subject.
Focus point is well in
front of subject.
_ ocus point is slightly
behind subject.
Focus point is well
behind subject.
Camera can not
determine correct
focus.
[] Using the Electronic Rangefinder
The electronic rangefinder requires a lens with a maximum aperture of f/5.6 or faster. The
desired results may not be achieved in situations in which the camera would be unable to
focus using autofocus (_ 42).
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