Reference Manual

53Basic Settings
AF-C
Continuous
AF
For moving subjects. The camera focuses continuously
while the shutter-release button is pressed halfway; if
the subject moves, the camera will predict the final
distance to the subject and adjust focus as necessary.
At default settings, the shutter can be released
whether or not the subject is in focus (release priority).
AF-F
Full-time
AF
The camera adjusts focus continuously in response to
subject movement or changes in composition. When
the shutter-release button is pressed halfway, the
focus point will turn from red to green and focus will
lock. This option is only available in movie mode.
MF
Manual
focus
Focus manually (0 64). The shutter can be released
whether or not the subject is in focus.
D Autofocus
The display may brighten or darken while the camera focuses and the
focus point may sometimes be displayed in green when the camera is
unable to focus. The camera may be unable to focus using autofocus in
the following situations:
• The subject contains lines parallel to the long edge of the frame
• The subject lacks contrast
• The subject in the focus point contains areas of sharply contrasting
brightness, or includes spot lighting or a neon sign or other light
source that changes in brightness
• Flicker or banding appears under fluorescent, mercury-vapor,
sodium-vapor, or similar lighting
• A cross (star) filter or other special filter is used
• The subject appears smaller than the focus point
• The subject is dominated by regular geometric patterns (e.g., blinds
or a row of windows in a skyscraper)
D Turning the Camera Off
The focus position may change if you turn the camera off and then on
again after focusing.
A Low-Light AF
For improved focus when lighting is poor, select AF-S and choose On for
Custom Setting a11 (Low-light AF).
Option Description