Nikon 25215 Manuale Utente

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Taking Photographs—Focus
Getting Good Results with Autofocus
Autofocus does not perform well under the conditions listed below.  If the 
camera is unable to focus using autofocus, use manual focus (
 83
) or use 
focus lock (
 80
) to focus on another subject at the same distance and then 
recompose the photograph.
 AF-Assist Illuminators
If the subject is dark, a Speedlight with an AF-assist illuminator can be used to assist 
the autofocus.