Mode A: Aperture Priority
In mode A (aperture priority), 
you choose the aperture and the 
camera selects the shutter speed.  
Choose large apertures (low 
f-numbers) to emphasize the main 
subject by blurring background and foreground details.  
Choose small apertures (high f-numbers) to bring both 
the background and main subject into focus.
 1
 Choose mode A.
Rotate the mode dial to A.  
The current aperture is dis-
played in orange.
 2
 Choose an aperture.
Rotate the up-down dial to 
choose an aperture.  Your se-
lection only takes effect when the photo is taken; the 
effect can not be previewed in the picture display.
 3
 Press the shutter-release button halfway.
Press the shutter-release but-
ton halfway to set focus and 
exposure.  The shutter speed 
selected by the camera will be 
displayed in the picture display.
 4
 Take the photograph.
Gently press the shutter-release button the rest of 
the way down to shoot.
 Note
If auto aperture shift is on (page 85), the camera will adjust aper-
ture for optimal exposure.