Reference Manual

76
Focus
D
Autofocus
•
The camera may be unable to focus if:
- 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
- The focus point includes night-time 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)
•
The monitor may brighten or darken while the camera focuses.
•
The focus point may sometimes be displayed in green when the camera
is unable to focus.
•
The camera may take longer to focus when lighting is poor.
A
Storing the Focus Position
To save the focus position when the camera is turned off, select [On] for
[Save focus position] in the setup menu. Note that this increases camera
startup times (in addition, if the temperature, zoom position, or other
conditions change while the camera is off, focus may resume from a
different position when the camera is turned on).
A
Low-Light AF
For improved focus when shooting under low light, select AF-S and
choose [On] for Custom Setting a10 [Low-light AF]. In photo mode, this
option takes effect only in modes P, S, A, and M.