Nikon D4S - Manual (Page 462)

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Camera is slow to respond to shutter-release button : Select Off for Custom Setting
d4 (Exposure delay mode; 0 327).
Only one shot taken each time shutter-release button is pressed in continuous release
mode
: Turn HDR off ( 0 190).
Photos are out of focus :
• Rotate focus-mode selector to AF ( 0 97).
• Camera unable to focus using autofocus: use manual focus or focus lock
( 0 105, 108).
Full range of shutter speeds not available : Flash in use. Flash sync speed can be
selected using Custom Setting e1 (Flash sync speed); when using
compatible flash units, choose 1/250 s (Auto FP) for full range of shutter
speeds (
0 331).
Focus does not lock when shutter-release button is pressed halfway : Camera is in
focus mode AF-C: use the center of the sub-selector to lock focus ( 0 105).
Can not select focus point :
• Unlock focus selector lock ( 0 103).
• Auto-area or face-priority AF selected for AF-area mode; choose another
mode ( 0 53, 100).
• Camera is in playback mode ( 0 241).
• Menus are in use ( 0 289).
• Press shutter-release button halfway to start standby timer ( 0 44).
Can not select AF mode :
• Rotate focus-mode selector to AF ( 0 97).
• Select No restrictions for Custom Setting a12 (Autofocus mode
restrictions, 0 320).
Can not select AF-area mode : Rotate focus-mode selector to AF ( 0 97).
Image size can not be changed : Image quality set to NEF (RAW) ( 0 90).
Choose image size using NEF (RAW) recording > Image size option in
shooting menu.
Camera is slow to record photos
: Turn long exposure noise reduction off
( 0 308).
Flicker or banding appears during live view or movie recording : Choose an option for
Flicker reduction that matches the frequency of the local AC power
supply (
0 363).