Sony DSLR-A100 - Manual (Page 36)

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You can adjust the shutter speed manually. If you shoot a moving subject at a higher shutter
speed, it appears as if frozen on the image. At a lower shutter speed, the subject appears as if it
flowing.
Aperture value is automatically adjusted to attain correct exposure according to the brightness
of the subject.
1 Set the mode dial to S.
2 Select a shutter speed using the control dial.
• You can adjust the shutter speed between 30 and 1/4000 second. You can adjust it between 30 and 1/
125 second (with the Super SteadyShot function activated) or 30 and 1/160 second (with the Super
SteadyShot function deactivated) when using the flash.
• The shutter speed is adjusted in 1/3 Ev increments.
• If the proper exposure is not obtained after making the settings, the aperture value on the LCD monitor
and in the viewfinder flashes when the shutter button is pressed halfway down. You can shoot at this point,
but adjusting again is recommended.
• When the flash is pulled up, the flash fires regardless of the amount of ambient light (page 54).
• When using the flash, if you close the aperture (a larger F-number) by making the shutter speed slower,
the flash light does not reach a distant subject. If you want to use the slower shutter speed, the Slow Sync
shooting is recommended (page 69).
• When the shutter speed is one second or more, the noise reduction will be done after shooting (page 85).
• The
(Camera-shake warning) indicator does not appear in the shutter speed priority mode.
Shooting with shutter speed priority
mode P A S M
High shutter speed Slow shutter speed
Control dial
Mode dial