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159Recording and Viewing Movies
• Wind noise reduction: Select On to enable the low-cut filter
for the built-in microphone (optional stereo microphones are
unaffected; 0 161, 309), reducing noise produced by wind
blowing over the microphone (note that other sounds may
also be affected). Wind-noise reduction for optional stereo
microphones can be enabled or disabled using microphone
controls.
• Manual movie settings: Choose On
to allow manual adjustments to
shutter speed and ISO sensitivity when
the camera is in mode M.
Shutter
speed can be set to values as fast as
1
/
4000 s; the slowest speed available
varies with the frame rate:
1
/
30 s for
frame rates of 24p, 25p, and 30p,
1
/
50 s for 50p, and
1
/
60 s for 60p.
ISO sensitivity can be set to values between ISO 100 and Hi 1
(0 95).
If shutter speed and ISO sensitivity are not in these
ranges when live view starts, they will automatically be set to
supported values, and remain at these values when live view
ends.
Note that ISO sensitivity is fixed at the value selected;
the camera does not adjust ISO sensitivity automatically when
On is selected for ISO sensitivity settings > Auto ISO
sensitivity control in the shooting menu (0 227).