Nikon D5 100th Anniversary Edition User Manual - Page 474

Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appear in photos: • Bright spots, randomly-spaced bright pixels, fog, and lines can be reduced by lowering ISO sensitivity. • Use the Long exposure NR option in the photo shooting menu to limit the occurrence of bright spots or fog in photos taken at shutter speeds slower than 1 s (0 315). • 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 selecting High, Normal, or Low for High ISO NR in the photo or movie shooting menu (0 316, 322). • At high ISO sensitivities, bright spots, randomly-spaced bright pixels, fog, or lines may be more noticeable in long exposures, multiple exposures, and photos taken at high ambient temperatures or with Active D-Lighting enabled, Flat selected for Set Picture Control (0 179) or extreme values selected for Picture Control parameters (0 182). Flicker or banding appears during movie recording: Choose an option for Flicker reduction that matches the frequency of the local AC power supply (0 322). Bright regions or bands appear in live view: A flashing sign, flash, or other light source with brief duration was used during live view. Smudges appear in photographs: Clean front and rear lens elements. If problem persists, perform image sensor cleaning (0 435). n 450