254Technical Notes—TroubleshootingTroubleshootingUnderstanding Error Messages and DisplaysThis section lists the indicators and error messages that appear in the view-finder, control panel, and monitor when there is a problem with the camera.Consult the list below before contacting your retailer or Nikon representa-tive.IndicatorProblemControlpanelView-fi nder Solution20Lens aperture ring is not set tominimum aperture.(blinks)Set ring to minimum aperture(largest f/-number).27Low battery. Ready a fully-charged sparebat tery.27Battery exhausted.(blinks) (blinks) Replace battery.130No lens attached, or non-CPU lens attached withoutspecifying maximum aperture.Aperture shown in stops frommaximum aperture.Aperture value will be dis-played if maximum apertureis specified.83Camera unable to focus usingautofocus.(blinks) Focus manually.522458890Subject too bright; photo willbe overexposed.• Choose a lower sensitivity(ISO equivalency)• Use optional ND filter• In ex po sure mode:S Increase shutter speedA Choose a smaller aper ture(larg er f/-number)521068890Subject too dark; photo will beunderexposed.• Choose a higher sensitivity(ISO equivalency)• Use optional Speedlight• In ex posure mode:S Lower shutter speedA Choose a larger aper ture(smaller f/-number)27Battery can not be used.(blinks) (blinks)Contact Nikon-authorized ser-vice representative.
