HP 930 - Manual (Page 27)

Chapter 2: Taking pictures and recording video clips 27
If the focus brackets turn red, the viewfinder light blinks, and
the
Macro icon blinks on the Image Display, either the
camera is set to the Macro focus range but detects the focus
is farther away than the macro (close-up) range, or the camera
is set to the Normal focus range but detects the focus is closer
than the normal range. For more information, see Setting the
focus range on page 30.
NOTE When set to the Macro focus range, the camera will
not take a picture if it cannot find focus. However, when
set to the Normal focus range (the default), the camera
will still take a picture if it cannot find focus.
Using focus lock
Focus Lock allows you to focus on a subject that is not in the
center of the picture, or to capture action shots more quickly by
pre-focusing in the area where action will occur. You can also
use Focus Lock to help achieve focus in low lighting or low
contrast situations.
1 Frame the subject for your picture within the focus brackets
in the viewfinder or in Live View . (See Using live view on
page 28.)
2 Press the Shutter button halfway down to lock the focus and
exposure.
3 Continue to hold the Shutter button halfway down while you
re-frame or adjust your subject for proper positioning.
4 Press the Shutter button all the way down to take the picture.