Canon EOS 50D - Manual (Page 104)

104
When bulb is set, the shutter stays open while 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 <a>.
2
Set the shutter speed to “buLb.”
While looking at the LCD panel, turn
the <6> dial to select “buLb.”
The next setting after “30" ” is “buLb.”
3
Set the desired aperture and
shoot.
To set the aperture, set the power switch
to , and turn the <5> dial.
While you hold down the shutter
button, the exposure will continue.
X The elapsed exposure time (sec.) will be
indicated on the LCD panel by the same
indicator used for the shots remaining.
Each time you press the button,
the LCD panel illumination will turn on or
off (9). During a bulb exposure,
pressing the shutter button completely
will turn off the LCD panel illumination.
Bulb Exposures
Elapsed exposure time
U
LCD Panel Illumination
Since bulb exposures produce more noise than usual, the image might
look rough or grainy.
When [8C.Fn II -1: Long exp. noise reduction] is set to [1: Auto] or
[2: On], noise generated by the bulb exposure can be reduced (p.176).
For bulb exposures, using the Remote Switch RS-80N3 or Timer Remote
Controller TC-80N3 (both sold separately) is recommended.
COP
Y