Subjects difficult to focus on, 110) and try to focus again – Canon EOS Rebel SL3 DSLR Camera with 18-55mm Lens (Black) User Manual
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Subjects Difficult to Focus on
Autofocus may fail to achieve focus (focus indicator <
o
> in the viewfinder
blinks) with special subjects such as the following:
z
Subjects with very low contrast (Example: Blue skies, solid-color flat
surfaces, etc.)
z
Subjects in very low light
z
Strongly backlit or reflective subjects (Example: Car with a highly
reflective body, etc.)
z
Near and distant subjects positioned close to an AF point (Example:
Animals in cages, etc.)
z
Light source such as dots of light positioned close to an AF point
(Example: Night scenes, etc.)
z
Subjects with repetitive patterns (Example: Skyscraper windows,
computer keyboards, etc.)
z
Subjects with finer patterns than an AF point (Example: Faces or
flowers as small as or smaller than an AF point, etc.)
In such cases, focus in either of the following two ways.
(1) With One-Shot AF, focus on an object at the same distance as the
subject and lock the focus, then recompose the shot (
(2) Set the lens’s focus mode switch to <
MF
> and focus manually.
z
Depending on the subject, focus may be achieved by slightly recomposing the
shot and performing AF operation again.
z
For conditions that make focusing difficult with AF during Live View shooting