Article ID : 00008308 / Last Modified : 03/23/2016

The camera does not focus using the auto focus (AF) setting.

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Auto focus issues that result in blurry, unclear pictures can be caused by a number of different things, such as distance from the subject and environment issues. The information below will provide you with various recommendations to troubleshoot and resolve issues with auto focusing.

NOTE: Refer to the operating instructions of the product if model-specific information is needed to complete any of the steps in this solution. Manuals are posted on your model support page.

  1. 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.
  2. Make sure subject or the environment where the pictures will be taken does not inhibit focusing.

    • Subjects with no contrast such as blue skies 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.

    Follow the steps below on how to focus on a subject within a difficult environment:

    1. Compose the shot with the focus locked using a subject at the same distance.

      NOTE: Lightly press the shutter button to keep the green frame displaced on the LCD screen of your camera.

    2. Switch the camera or the lens to Manual Focus(MF).
    3. Adjust the aperture value of the camera to avoid partly focused images by opening the aperture to blur either the background or the foreground of the image.
      1. Set the camera mode dial to Aperture Priority mode (A).

        NOTE: Aperture mode automatically sets the camera so variables other than the aperture are at optimum exposure.

      2. Increase the aperture value or F-value of the camera using the dial of the camera when shooting in dark locations. This reduces the amount of light the camera received.

        NOTE: Usage of tripod is recommended to avoid camera shake.

  3. For ILCA-77M2, SLT-A77V, SLT-A99V, or DSLR-A900 models, if the image is still out of focus adjust the AF Micro Adjustment function of every lens used by following the steps below:

    1. Press Menu.
    2. Select Setup.
    3. Select AF Micro Adj.
    4. Select AF Adjustment Setting.
    5. Select ON to display a scale for you to choose the desired value.

      NOTE: If needed, refer to the operating instructions supplied with the camera for model-specific instructions on how to adjust the AF fine adjustment value. Manuals are posted on your model support page.

    6. Turn the control wheel, dial or joystick of the camera to select the desired value.

      NOTE: The larger the value, the farther the focusing position from the camera; the smaller the value, the nearer the focusing position to the camera.

    7. Press the center button of the control wheel or the joystick of the camera when finished.

      NOTES:

      • The adjustment value cannot be registered if the AF Micro Adj. is not set to On.
      • It is recommended to adjust the AF fine adjustment value of your camera under actual shooting conditions.
      • The registered value is displayed when a registered lens is attached.
      • The registered value is zero (0) for unregistered lenses.
      • A total of 30 registered lenses if a dash (-) is displayed as a value. To register a new lens, attach a lens for which you can delete the registered value and adjust the value to 0. Alternately, you can clear the adjustment values to reset all registered adjustment values.
      • The registered setting for a Sony®, Minolta® or Konica Minolta™ lenses may be affected if the AF fine adjustment is made to an unsupported lens.
      • You cannot individually perform AF fine adjustment when using the Sony, Minolta, and Konica Minolta lenses that have the same specifications.

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. Begin the procedure to send your Sony product into a Sony facility to be repaired.