Difficult subjects for AF (Auto Focus)

    06-Mar-2015
    8202538700

    Solusi

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

      • Very low-contrast subjects
      (Example: Blue sky, solid-color walls, etc.)
      • Subjects in very low light
      • Strongly backlit or reflective subjects
      (Example: Car with a highly reflective body, etc.)
      • Near and distant subjects framed close to an AF point
      (Example: Animal in a cage, 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, do either of the following:
      (1) With One-Shot AF, focus on an object at the same distance as the subject and lock the focus before recomposing the shot
      (2) Set the lens’s focus mode switch to [ MF ] and focus manually.


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

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