Canon EOS 5D Mark III, Инструкция по эксплуатации

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When bulb is set, the shutter stays open as long as you hold down the
shutter button completely, and closes when you let go of the shutter
button. This is called bulb exposure. Use bulb exposures for night
scenes, fireworks, the heavens, and other subjects requiring long
exposures.
1
Set the Mode Dial to < F >.
2
Set the desired aperture.
While looking at the LCD panel, turn
the <
6
> or <
5
> dial.
3
Take the picture.
While you hold down the shutter
button, the exposure will continue.
X The elapsed exposure time will be
displayed on the LCD panel.
F
: Bulb Exposures
Elapsed exposure time
Long exposures produce more noise than usual.
When [
z
3: Long exp. noise reduction ] is set to [ Auto ] or [ Enable ],
noise generated by the long exposure can be reduced (p.144).
For bulb exposures, using a tripod and Remote Switch RS-80N3 (sold
separately) or Timer Remote Controller TC-80N3 (sold separately) is
recommended (p.185).
You can also use a remote controller (sold separately, p.186) for bulb
exposures. When you press the remote controller’s transmit button, the
bulb exposure will start immediately or 2 sec. later. Press the button
again to stop the bulb exposure.
COP
Y