Sigma SA-5 Manual page 40

subject is too bright, use an ND filter to reduce the brightness. If the subject is too dark, the camera will proceed
to take a flash exposure with the aperture wide open.
If you adjust the shutter speed until the aperture value indicator stop blinking, you can get an appropriate
exposure for both the subject and background. (Slow Synchronization)
When used with A mode
When you set the desired aperture value, the camera will select the appropriate shutter speed for the
background. The shutter speed will operate between 1/125 and 30 seconds. In bright situations, the camera will
work the same as P mode for Daylight synchronization Flash.
If the subject is too bright or too dark, the shutter speed indicator will blink and will show limit values. If the
subject is too bright, use an ND filter to reduce the brightness. If the subject is too dark, set the aperture value to
a wider one. If you adjust the Aperture value until the shutter speed indicator stop blinking, you can get an
appropriate exposure for both the subject and background. (Slow Synchronization)
When used with M mode
You can set the desired shutter speed and aperture value. The shutter speed will operate between 1/125 and 30
seconds.
If you adjust exposure until the exposure meter indicates O (zero), the camera will work as for Daylight
synchronization Flash or Slow Synchronization.
MIRROR-UP
If you wish to reduce the camera's mirror vibration. use the mirror-up function.
While pressing the Drive Mode Button, turn the A-dial until the " UP"
appears on the LCD panel.
When you press shutter button "Half-way", the shutter speed and
aperture value will be displayed and the exposure value memorized.
As you press the shutter button further, the mirror will move up.
To release the shutter, press the shutter button again.
The camera will cancel the mirror up mode if the shutter is not
released within about 5 minutes of mirror up.
Once you set the Mirror Up Mode, the camera continuously holds that
mode until you set the mode dial to the
To reduce the vibration, you can use the remote controller to release
the shutter See the '`Remote Controller" section for more details.
L
position