Nikon D780 Reference Manual - Page 802

˔ Photos are out of focus: • Is the camera in manual focus mode? To enable autofocus, rotate the focus-mode selector to AF. • Autofocus does not perform well under the following conditions. In these cases, use manual focus or focus lock. Autofocus does not perform well if: there is little or no contrast between the subject and the background, the focus point contains objects at different distances from the camera, the subject is dominated by regular geometric patterns, the focus point contains areas of sharply contrasting brightness, background objects appear larger than the subject, or the subject contains many fine details. ˔ The beep does not sound: • A beep does not sound when AF-C is selected for autofocus mode or AF-A is selected and the camera is shooting using AF-C. • Select an option other than [Off] for [Beep options] > [Beep on/off] in the setup menu. ˔ The full range of shutter speeds is not available: Using a flash restricts the range of shutter speeds available. Flash sync speed can be set to values of 1/200-1/60 s using Custom Setting e1 [Flash sync speed]. When using flash units that support auto FP highspeed sync, choose [1/200 s (Auto FP)] for a full range of shutter speeds. ˔ Focus does not lock when the shutter-release button is pressed halfway: If AF-C is selected for autofocus mode or AF-A is selected and the camera is shooting using AF-C, focus can be locked using the A button. 756 Troubleshooting