Nikon D780 Reference Manual page 84

4
Press the shutter-release
button halfway to focus.
•
The in-focus indicator ( I ) will
appear in the viewfinder when the
focus operation is complete.
Viewfinder
•
The active focus point is displayed in the viewfinder.
Basic Photography and Playback
38
display
The subject is in focus.
(steady)
The focus point is in front of the subject.
(steady)
The focus point is behind the subject.
(steady)
The camera is unable to focus using autofocus.
(flashes)
Description