Nikon D5500 - Manual (Page 57)

33 Introduction
8
Focus the viewfinder.
After removing the lens
cap, rotate the diopter
adjustment control until
the AF area brackets are in
sharp focus. When
operating the control with
your eye to the viewfinder, be careful not to put your fingers
or fingernails in your eye.
The camera is now ready for use. Proceed to page 38 for
information on taking photographs.
AF area
brackets
Viewfinder not in focus Viewfinder in focus
A The Clock Battery
The camera clock is powered by an independent, rechargeable power
source, which is charged as necessary when the main battery is
installed.
Three days of charging will power the clock for about a
month. If a message warning that the clock is not set is displayed
when the camera is turned on, the clock battery is exhausted and the
clock has been reset.
Set the clock to the correct time and date.