Nikon D500 100th Anniversary Edition User Manual - Page 378

Can not select focus point: • Unlock focus selector lock (0 108). • Auto-area AF selected for AF-area mode or face-priority AF selected in live view; choose another mode (0 48, 103). • Camera is in playback mode (0 255). • Menus are in use (0 281). • Press shutter-release button halfway to start standby timer (0 39). Can not select AF mode: Select No restrictions for Custom Setting a10 (Autofocus mode restrictions, 0 294). Camera is slow to record photos: Turn long exposure noise reduction off (0 286). 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 (0 286). • 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 (0 286, 290). • 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 (0 180) or extreme values selected for Picture Control parameters (0 183). 352