Nikon D300s - Manual (Page 87)

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D Recording Movies
Banding or distortion may be visible in the monitor and in the final
movie 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 when the
camera is panned. Jagged edges, false colors, moiré, and bright spots
may also appear. When recording movies, 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.
In tripod mode, movies may be over- or under-exposed at some
aperture settings. Before shooting, check the brightness of the scene in
the monitor; if the picture is too bright or too dark, end live view and
adjust aperture as necessary. Note that depending on the brightness of
the subject, changes to exposure may have no visible effect.
Recording ends automatically if the lens is removed. Recording may
end automatically before the maximum file size is reached when
recording to memory cards with slow write speeds.
When used in live view mode for extended
periods, the camera’s internal temperature may
rise, resulting in image noise and unusual colors
(the camera may also become noticeably warm,
but this does not indicated a malfunction). To
prevent damage to the camera’s internal
circuits, recording will end automatically before
the camera overheats. A count-down display will appear in the monitor
30 s before shooting ends. At high ambient temperatures, this display
may appear immediately when live view mode is selected.
Matrix metering is used regardless of the metering method selected.
The camera adjusts shutter speed and ISO sensitivity automatically.
[ 1 2 0 2 0 m m 0 0 s 0 0 s ]
AUTO NORM
A A [ 1 2 0 m 0 0 s ] 27s