Nikon D3S User Manual page 98

To adjust ISO sensitivity to suit lighting
conditions, highlight High-sensitivity
movie mode and press 2. If lighting is
so poor that the subject is difficult to see
with the naked eye, highlight On and
press J to shoot at ISO sensitivities of
ISO 6400 to Hi 3 (a m icon will be
displayed in the monitor). Select Off to
shoot at ISO sensitivities between ISO
200 and ISO 12800.
y
A
High-Sensitivity Movie Mode
Movies shot at high sensitivities are prone to noise (randomly-spaced
bright pixels, fog, or lines) and after-images of light sources and other
bright objects. If the subject is brightly lit, highlights may be "washed
out" and details may be lost. Check the results in the monitor and turn
high-sensitivity movie mode off if necessary. Note that the camera may
have difficulty focusing using contrast-detect autofocus.
Although m is displayed whenever high-sensitivity mode is enabled,
photographs taken while high-sensitivity movie mode is in effect are
shot at the ISO sensitivity selected for ISO sensitivity in the shooting
menu (0 110).
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