Canon Group
Close Close
Menu Menu Close Close Search
EOS 5Ds front
EOS 5Ds Support
FAQs & troubleshooting

Difficult subjects for AF (Auto Focus) (EOS 5DS / EOS 5DS R)

Content Id: 8202601900


Solution

Autofocus can fail to achieve focus (viewfinder’s focus indicator [ ] blinks) with certain subjects such as the following:

Subjects Difficult to Focus

Subjects with very low contrast

(Example: Blue skies, solid-color flat surfaces, etc.)

Subjects in very low light
Strongly backlit or reflective subjects

(Example: Cars with highly reflective bodies, etc.)

Near and distant subjects framed close to an AF point

(Example: Animals in cages, etc.)

Subjects such as dots of light framed close to an AF point

(Example: Night scenes, etc.)

Repetitive patterns

(Example: Skyscraper windows, computer keyboards, etc.)

In such cases, focus by doing either of the following:

(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.

Caution

Depending on the subject, focus may be achieved by slightly recomposing the shot and performing AF operation again.

"Was this helpful?"