Autofocus issues that result in blurry, unclear pictures can be caused by settings selection, distance from the subject, and environmental issues among other factors. The information below will provide you with various recommendations to troubleshoot and resolve issues with auto focusing.
Make sure the subject is within the minimum focusing distance.
- The minimum focusing distance from the subject in which you can take a picture is determined by the lens you are using. Shoot at the focus distance or further away from the subject to avoid out-of-focus images.
- The minimum focusing distance is written on the front or side of the lens.
Example: For SAL1855 (DT 18-55mm F3.5-5.6 SAM), minimum focusing distance is noted as "0.25m/0.82ft" in meters (m) and feet (ft).
In some cases, the subject or the environment where the pictures will be taken may have an effect on focusing:
- Subjects with no contrast such as the blue sky or white walls.
- Multiple subjects with different distances within the focus area.
- Bright or backlit subjects.
- Shiny or glossy subjects such as water surfaces.
- Fast-moving subjects.
The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required. Send the camera body along with the lens used in performing the troubleshooting steps and sample pictures showing the issue.  Go to Product Repair.