Reference Manual

Table Of Contents
412 Troubleshooting
The full range of shutter speeds is not available: A flash in use. Flash sync speed
can be selected using Custom Setting e1 (Flash sync speed); when
using compatible flash units, choose 1/200s (Auto FP) to access the full
range of shutter speeds.
Focus does not lock when the shutter-release button is pressed halfway: When AF-C is
selected for focus mode or AF-A is selected and the camera is shooting
using AF-C, focus can be locked by pressing the A (L) button.
The focus point cannot be changed: Focus-point selection is unavailable in
auto-area AF; choose another AF-area mode.
The camera is slow to record photos: Turn long exposure noise reduction off.
Photographs and movies do not appear to have the same exposure as the preview
shown in the display: To preview the effects of changes to settings that
affect exposure and color, select On for Custom Setting d7 (Apply
settings to live view). Note that changes to Monitor brightness and
Viewfinder brightness have no effect on images recorded with the
camera.
Flicker or banding appears in movie mode: Select Flicker reduction in the
movie shooting menu and choose an option that matches the frequency
of the local AC power supply.
Bright regions or bands appear in the view through the lens: The shot is being
framed under flashing sign, flash, or other light source with brief
duration.
Smudges appear in photographs: Clean the front and rear lens elements. If the
problem persists, clean the image sensor as described in “Cleaning the
Image Sensor” (0 444) or consult a Nikon-authorized service
representative.