8 Getting to Know the CameraThis section outlines how to use various camera controls anddisplays.The ViewfinderPlacing your eye to the viewfinderactivates the eye sensor, switching thedisplay from the monitor to theviewfinder (note that the eye sensor willalso respond to other objects, such asyour fingers). The viewfinder can be usedfor menus and playback if desired.The Monitor Mode ButtonPress the monitor mode button to cyclebetween viewfinder and monitordisplays.Camera ControlsD The Diopter Adjustment ControlTo focus the viewfinder, lift and rotate thediopter adjustment control, being carefulnot to put your fingers or fingernails in youreye. Push the control back in once focus isadjusted to your satisfaction.A Extended UseWhen using the viewfinder for extended periods, you can adjustviewfinder brightness and hue for ease of viewing by selecting Off forCustom Setting d8 (Apply settings to live view).A Monitor ModeYou can limit the choice of monitor modes available using the Limitmonitor mode selection option in the setup menu.Eye sensor