Solution
AF (Auto Focus) can fail to achieve focus (the focus confirmation light blinks) on certain subjects such as the following:
- Low-contrast subjects. (ex. blue sky, solid-color walls)
- Subjects in low light.
- Extremely backlit reflective subjects. (ex. car with a reflective body)
- Overlapping near and far objects. (ex. animal in a cage)
In such cases, do either of the following:
- Focus on an object at the same distance as the subject and lock the focus before recomposing.
- Set the lens focus mode switch to <MF> and focus manually.
