User Manual

169Recording and Viewing Movies
• Microphone: Turn the built-in or optional stereo
microphones (0 170, 323) on or off or adjust microphone
sensitivity.
Choose Auto sensitivity to adjust sensitivity
automatically, Microphone off to turn sound recording off; to
select microphone sensitivity manually, select Manual
sensitivity and choose a sensitivity.
• Wind noise reduction: Select On to enable the low-cut filter
for the built-in microphone (optional stereo microphones are
unaffected; 0 170, 323), 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. If shutter speed is not in this range
when live view starts, it will automatically be set to a
supported value, and remain at this value 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 (0 228).