Canon EOS 6D, Инструкция по эксплуатации

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96
Autofocus can fail to achieve focus (viewfinder’s 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 and 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 either of the following:
(1) With One-Shot AF, focus an object at the same distance as the
subject and lock the focus before recomposing the shot (p.69).
(2) Set the lens focus mode switch to < MF > and focus manually (p.97).
When Autofocus Fails
For conditions where AF can fail to achieve focus with [ FlexiZoneAF
†
(Single)]/[
u
Live mode ] during Live View shooting, see page 196.