Ricoh GR Digital III Manual Do Utilizador

Página de 185
59
M
OR
E
 
ON
 P
HOT
O
GR
APH
Y
Focus
Choose how the camera focuses.  By default, the camera 
uses autofocus; other options are listed below.
Option
Option
Description
Description
Multi AF
The camera selects the focus area with the closest 
subject, preventing out-of-focus shots by keeping 
the camera from focusing on the background.
Spot AF
Focus on the subject in the center of the frame.
MF
(manual focus)
Focus manually (page 60).
Snap
Focus is fixed at distance selected with Snap Focus 
Distance
 (page 64) for quick shutter response. 
 (infinity)
Fix the focus distance at infinity when photograph-
ing distant scenes.
In the case of MFSnap, and , the 
current selection is shown by an 
icon in the picture display.
  Tip: Depth of Field
Depth of field is the distance in front of and behind the focus point 
that appears to be in focus.  Small apertures (high f-numbers) in-
crease depth of field, bringing more of the scene into focus; large 
apertures (low f-numbers) decrease depth of field, emphasizing 
the main subject by blurring the foreground and background.  At 
settings of MFSnap, and , the focus 
bar shows depth of field in shooting 
modes MA, and P (in mode P, depth of 
field is only shown when the shutter-
release button is pressed halfway and 
aperture values are displayed).
 Note
The Fn buttons can be used to switch back and forth between au-
tofocus and manual or snap focus (page 121).
Depth of field 
(green)
Focus bar 
(distances are 
approximate)
Depth of field 
(green)
Focus bar 
(distances are 
approximate)