When Autofocus Fails; Manual Focusing - Canon EOS REBEL Ti 300V Date Instructions Manual

When Autofocus Fails

The camera has a high-precision AF system which can focus almost all
subjects. However, it can fail to achieve focus (the focus confirmation
light < > blinks) the subjects listed below.
Difficult Subjects for Autofocusing
• Low-contrast subjects. Example: Blue sky, flat surface with a solid color.
• Subjects in very low light.
• Extremely backlit or reflective subjects. Example: Automobile with a
strong reflection.
• Overlapping near and far objects. Example: Animal behind bars in a
cage.
In such cases, use one of the following methods to focus:
(1) Focus lock an object at the same distance as the subject and
recompose.
(2) Set the lens focus mode switch to <MF> or <M> and focus manually
as explained below.
If focus cannot be achieved even with the EOS-dedicated Speedlite's AF-assist
light, select the center AF point.

Manual Focusing

If you hold down the shutter button halfway while focusing manually, the
active AF point will flash and the focus confirmation light <
focus is achieved.
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1 Set the lens focus mode switch to
< MF > (or <
The < > icon will be displayed on
the LCD panel.
2 Focus the subject.
•
Turn the lens manual focusing ring
until the subject is in focus in the
viewfinder.
M > on older lenses).
> will light when