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F: Long (Bulb) Exposures
In this mode, 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 photographic technique is called "bulb exposure". Use bulb
exposures for night scenes, fireworks, the heavens, and other subjects
requiring long exposures.
Elapsed exposure time
Do not point the camera toward an intense light source, such as the sun
or an intense artificial light source. Doing so may damage the image
sensor or the camera's internal components.
Long bulb exposures produce more noise in the image than usual.
If ISO Auto is set, ISO 400 will be set (p.172).
When shooting bulb exposures without using the bulb timer, if you use
both the self-timer and mirror lockup, keep pressing the shutter button
completely (for self-timer delay time + bulb exposure time). If you let go
of the shutter button during the self-timer countdown, there will be a
shutter-release sound, but no picture will be taken. If you use the bulb
timer under the same shooting conditions, you need not keep holding
down the shutter button completely.
250
Set the Mode Dial to <F>.
1
Set the desired aperture.
2
While looking at the LCD panel or the
viewfinder, turn the <6> or <5>
dial.
Take the picture.
3
The exposure will continue for as long
as you keep the shutter button
pressed completely.
The elapsed exposure time will be
displayed on the LCD panel.
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