160Chapter9 MaintenanceandInspectionsMaintenanceEyepiece Care When the outer lens is soiledRemove surface dust using a soft brush or blowerbrush before cleaning with a commercially availablelens cleaner (or lens cleaning paper). When dust adheres to internal lenses orthe interior of the eyepieceDetach the eyepiece to remove the dust.Use a soft brush or blower brush to remove surfacedust. NOTEDo not use thinner or other mineral solvents to remove dust orsoiling.EyepiecelockbuttonEyepieceOuterlensDetaching the eyepieceSlide the eyepiece lock button and turn the eyepiececlockwise.Mounting the eyepieceLine up the projection on the eyepiece lock button with themark on the viewfinder and slide in the eyepiece. Turn theeyepiece counterclockwise until the lock knob clicks intoplace. NOTEWhen outdoors, never carry or set up the camera with theeyepiece facing up to prevent sunlight, which could damagethe camera, from entering.Cleaning Inside the ViewfinderDetach the eyepiece to remove dust from the LCD screeninside the viewfinder.For details, refer to [Detaching the eyepiece] (this page).Use a soft brush or blower brush to remove dust from theLCD screen. NOTEDo not use thinner or other mineral solvents to remove dust orsoiling.Charging the internal batteryThe internal battery preserves the date and time settings.If the camera is left unused for half a year or longer, theinternal battery may become depleted and the (batteryicon) may appear in the viewfinder and on the LCD monitor.Should this happen, connect an external DC power supplyor battery, and leave the camera turned off for about fourhours to fully charge the internal battery. Then reset thetime and date.Replace the internal battery if appears after charging.Consult your distributor.