359Technical Notes
A A Note on Wide- and Super Wide-Angle Lenses
Autofocus may not provide the desired results in situations like those
shown below.
1 Objects in the background occupy more of the focus point than the
main subject:
If the focus point contains both
foreground and background objects,
the camera may focus on the
background and the subject may be
out of focus.
Example: A far-off portrait
subject at some distance from
the background
2 The subject contains many fine details.
The camera may have difficulty
focusing on subjects that lack
contrast or appear smaller than
objects in the background.
Example: A field of flowers
In these cases, use manual focus, or use focus lock to focus on
another subject at the same distance and then recompose the
photograph.
For more information, see “Getting Good Results
with Autofocus” (0 76).