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9-9
9
Focusing
Focus these difficult subjects as follows:
Low-light situation
Subjects with objects in front of them
1 Make the following
adjustments, as needed.
With low contrast subjects,
focus on a substitute subject at
the same distance from the
camera as your main subject,
then recompose the picture
using the focus lock function.
With horizontal patterns, there is
no problem when using a lens
with a maximum aperture of
f/2.8 or larger (except the
EF50mm f/2.5 Compact Macro
or EF28-80mm f/2.8-4L)
because the camera’s central
cross-sensor activates to detect
horizontal lines. When using a
lens with a maximum aperture
smaller than f/2.8, use the
focusing points other than the
center as these have vertical
sensors. Focus the subject, then
recompose the picture using the
focus lock function.
With vertical patterns, use the
center focusing point which has
a horizontal sensor, focus the
subject, then recompose the
picture using the focus lock
function.
2 Set the lens’ Focus Mode switch
to (M) and manually focus the
subject. (Refer to the section on
“Manual Focusing” on the next
page for more information.)
(ii)
)
(iii)