Nikon D3100 User Manual page 41

~
Shooting in Live View Mode
To prevent light entering via the viewfinder from interfering with exposure, remove the
rubber eyecup and cover the viewfinder with the supplied DK-S eyepiece cap before
shooting
(.....J
42).
Although they will not appear in the final picture, flicker, banding, or distortion may be
visible in the monitor under fluorescent, mercury vapor, or sodium lamps or if the camera is
panned horizontally or an object moves at high speed through frame. Bright light sources
may leave after-images in the monitor when the camera is panned. When shooting in live
view mode, avoid pointing the camera at the sun or other strong light sources. Failure to
observe this precaution could result in damage to the camera's internal circuitry.
Live view ends automatically if the lens is removed.
Live view may end automatically to prevent damage to the camera's internal circuits; exit live
view when the camera is not use. Note that the temperature of the camera's internal circuits
may rise and noise (bright spots, randomly-spaced bright pixels, or fog) may be displayed in
the following instances (the camera may also become noticeably warm, but this does not
indicate a malfunction):
• The ambient temperature is high
• The camera has been used for extended periods in live view or to record movies
• The camera has been used in continuous release mode for extended periods
If a warning is displayed when you attempt to start live view, wait for the internal circuits to
cool and then try again.
~
The Count Down Display
A count down will be displayed 30 s before live view ends automatically (0 31; the timer
turns red 5 s before the auto-off timer expires or if live view is about to end to protect the
I
internal circuits). Depending on shooting conditions, the timer may appear immediately
when live view is selected. Note that although the count down does not appear in the
information display or during playback, live view will still end automatically when the timer
expires.
~
Using Autofocus in Live View
Autofocus is slower in live view and the monitor may brighten or darken while the camera
focuses. The camera may be unable to focus in the following situations:
• The subject contains lines parallel to the long edge of the frame
• The subject lacks contrast
• The subject in the focus point contains areas of sharply contrasting brightness, or the
subject is lit by spot lighting or by a neon sign or other light source that changes in
brightness
• Flicker or banding appears under fluorescent, mercury-vapor, sodium-vapor, or similar
lighting
• A cross (star) filter or other special filter is used
• The subject appears smaller than the focus point
• The subject is dominated by regular geometric patterns (e.g., blinds or a row of windows
in a skyscraper)
• The subject is moving
Note that the focus point may sometimes be displayed in green when the camera is unable
to focus.
35