Olympus E-P3 Introduction Manual (en)

EN

Choosing aperture (A aperture-priority mode)

In mode A, you choose the aperture and let the camera automatically adjust shutter 
speed for optimal exposure.

Rotate the mode dial to A.

Rotate the main (or sub) dial to choose the 
aperture.

Press the F button (

F) and rotate a dial to adjust 

exposure compensation.

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Aperture value

Take pictures.

Larger apertures (lower f-numbers) decrease depth of fi eld (the area in front of or 
behind the focus point that appears to be in focus), softening background details. 
Smaller apertures (higher f-numbers) increase depth of fi eld.

When the 
aperture 
value (f-
number) is 
decreased

When the 
aperture 
value 
(f-number) is 
increased

The Fn1/Fn2 and 

R buttons can be used to preview 

depth of fi eld. If [Preview] is assigned to any of these 
buttons using the [

U Function],  [V Function],  or 

[

R Function] option in the custom menus, you can 

press and hold the button to stop aperture down to the 
selected value and preview depth of fi eld (the distance 
behind and in front of the focus point that appears to be 
in focus) in the monitor. [Button Function]: 
g “Customizing camera settings” (P. 81)

Fn1 button

R button

Fn2 button

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Changing the roles of the main and sub dials. [Dial Function]: 
g “Customizing camera settings” (P. 81)

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