Nikon D3400 Triple Lens Parent's Kit Owner's Manual

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322 Technical 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, particularly with wide- 
and super wide-angle lenses.
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 contain 
many fine details.
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” (