Canon EOS60D18135ISKIT User Manual (en)

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Autofocus can fail to achieve focus (the focus confirmation light <o> 
blinks) with certain subjects such as the following:
Subjects difficult to focus
 
Very low-contrast subjects
(Example: Blue sky, solid-color walls, etc.)
 
Subjects in very low light
 
Extremely backlit or reflective subjects
(Example: Car with a highly reflective body, etc.)
 
Near and far subjects covered by an AF point 
(Example: Animal in a cage, etc.)
 
Repetitive patterns
(Example: Skyscraper windows, computer keyboards, etc.)
In such cases, do one of the following:
(1) With One-Shot AF, focus an object at the same distance as the 
subject and lock the focus before recomposing (p.56).
(2) Set the lens focus mode switch to <MF> and focus manually.
1
Set the lens focus mode switch to 
<MF>.
X
<4 L> will be displayed on the 
LCD panel.
2
Focus the subject.
 
Focus by turning the lens focusing 
ring until the subject looks sharp in 
the viewfinder.
When Autofocus Fails
MF: Manual Focusing
Focusing ring
If you press the shutter button halfway during manual focusing, the AF point 
which achieved focus will flash briefly in red and the focus confirmation light 
<o> will light in the viewfinder.
COP
Y