193Technical NotesTroubleshootingFlash does notfire.• A shooting mode where the flash cannot fire is selected.• A function that restricts the flash is enabled.7476Digital zoomcannot be used.• Digital zoom is set to Off in the setup menu.• Digital zoom cannot be used with certain shooting modesor when using certain settings in other functions.112,16679, 166Image size notavailable.• A function that restricts the Image size option is enabled.• When the scene mode is set to Easy panorama, the imagesize is fixed.7645No sound whenthe shutter isreleased.Off is selected for Shutter sound in Sound settings in thesetup menu. No sound is produced with some shootingmodes and settings, even when On is selected.76,112,167AF-assistilluminator doesnot light.Off is selected for the AF assist option in the setup menu. AF-assist illuminator may not light depending on the position ofthe focus area or the current scene mode, even when Auto isselected.112,166Images appearsmeared. The lens is dirty. Clean the lens. 185Colors areunnatural. White balance or hue is not adjusted properly. 40, 127Randomlyspaced brightpixels (“noise”)appear inimage.The subject is dark and the shutter speed is too slow or ISOsensitivity is too high. Noise can be reduced by:• Using the flash• Specifying a lower ISO sensitivity setting28, 57135Bright spotsappear inimage.When shooting at a slow shutter speed in multiple exposuremode, noise (bright spots) may appear in saved images. –Images are toodark(underexposed).• The flash window is blocked.• The subject is beyond the range of the flash.• Adjust exposure compensation.• Increase ISO sensitivity.• The subject is backlit. Use the flash or the Backlightingscene mode.262006613528, 40Images are toobright(overexposed).Adjust exposure compensation. 66Problem Cause/Solution A