Sony DSLR-A580L - Manual (Page 73)

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• The shutter speed may become slower depending on the aperture value.
When the shutter speed is slower, use a tripod.
• To blur the background more, use a telephoto lens or a lens that is
equipped with a smaller aperture value (bright lens).
Note
• Press the button when you shoot with the flash. However, the flash range differs
according to the aperture value. When you shoot with the flash, check the flash range
(page 100).
2
Select the aperture value (F-
number) with the control dial.
• Smaller F-number: The foreground and
background of the subject are blurred.
Larger F-number: The subject and its
foreground and background are all in
focus.
• You cannot check the blurring of an
image on the LCD monitor or in the
viewfinder. However, you can check
blurring of the background by pressing
the preview button.
Aperture (F-number)
3
Adjust the focus and shoot the
subject.
The shutter speed is automatically
adjusted to obtain correct exposure.
• When the camera judges that the proper
exposure is not obtained with the
selected aperture value, the shutter
speed flashes. In such cases, adjust the
aperture again.
Shutter speed
Shooting techniques