Nikon D3500 Reference Manual complete instructions - English - Page 280

Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appears in photos: • Bright spots, randomly-spaced bright pixels, fog, and lines can be reduced by lowering ISO sensitivity. • Use the Noise reduction option in the shooting menu to limit the occurrence of bright spots or fog in photos taken at shutter speeds slower than 1 s (0 197). • Fog and bright spots may indicate that the camera's internal temperature has become elevated due to high ambient temperatures, long exposures, or similar causes: turn the camera off and wait for it to cool before resuming shooting. • At high ISO sensitivities, lines may appear in photos taken with some optional flash units; if this occurs, choose a lower value. • At high ISO sensitivities, including high values selected with auto ISO sensitivity control, randomly-spaced bright pixels can be reduced by turning Noise reduction on (0 197). • At high ISO sensitivities, bright spots, randomly-spaced bright pixels, fog, or lines may be more noticeable in long exposures, and photos taken at high ambient temperatures or with Active D-Lighting enabled, Flat selected for Set Picture Control (0 122) or extreme values selected for Picture Control parameters (0 125). • In % mode, randomly-spaced bright pixels, fog, or lines may be more noticeable in pictures shot under low light. Beep does not sound: • Off is selected for Beep (0 215). • Camera is in quiet shutter-release mode (0 58), or movie is being recorded (0 127). • MF or AF-C is selected as the focus mode or subject moves when AF-A is selected (0 62). Smudges appear in photographs: Clean front and rear lens elements. If problem persists, clean the image sensor manually (0 288) or contact a Nikon-authorized service representative. Date is not imprinted on photos: An NEF (RAW) option is selected for image quality (0 78, 204). 256 Troubleshooting