Owner's Manual

AF Area Selection Modes
The AF areas are explained starting with the smallest one.
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(1) Spot AF (Manual selection) C.Fn III -6
Although this is the same as single-point AF, the
selected AF point
< 0 > covers a smaller pinpoint
area to focus. Effective for pinpoint focusing
overlapping subjects such as an animal
in a cage.
Since Spot AF covers a very small area, focusing
might be difficult during hand-held shooting or for a
moving subject.
(2) Single-point AF (Manual selection)
Select one AF point < 0> to be used to focus.
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(3) AF point expansion (Manual selection) C.Fn III -6
The manually-selected AF point < 0 > and adjacent AF points < D > are
used to focus. Effective when it is difficult to track a moving subject with
just one AF point.
With
AI Servo AF, the manually-selected AF point < 0 > must focus-
track the subject first. However, it is easier to focus the target subject
than with Zone
AF.
With One-Shot AF, when focus is achieved with the expanded AF point,
the expanded AF point
< 0 > will also be displayed along with the
manually-selected AF point
< 0>.
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