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LA-EA1 Firmware Upgrade Ver.02 With NEX-3 / NEX-5 / NEX-C3 (Microsoft Windows)

Article ID:422480(modified 11 May 2017)

Applicable Models


What does this download do?

Thank you for your continued interest in Sony products.

Sony is always concerned about customer satisfaction and therefore is offering a software upgrade program for Mount Adaptor "LA-EA1".

Improvements after firmware upgrade

  1. Support for the autofocus function when A-mount lens is attached to the camera.

    The following SAM lenses and SSM lenses are supported.

    SAM lenses
    DT18-55mm F3.5-5.6 SAM [SAL1855], 28-75mm F2.8 SAM [SAL2875], DT55-200mm F4-5.6 SAM [SAL55200-2], DT30mm F2.8 Macro SAM [SAL30M28], DT35mm F1.8 SAM [SAL35F18], DT50mm F1.8 SAM [SAL50F18], 85mm F2.8 SAM [SAL85F28]

    SSM lenses

    Vario-Sonnar T* 16-35mm F2.8 ZA SSM [SAL1635Z],
    Vario-Sonnar T* 24-70mm F2.8 ZA SSM [SAL2470Z],
    Distagon T* 24mm F2 ZA SSM [SAL24F20G],
    70-200mm F2.8 G [SAL70200G], 70-300mm F4.5-5.6 G SSM [SAL70300G], 70-400mm F4-5.6 G SSM [SAL70400G], 300mm F2.8 G [SAL300F28G]

    * With an A-mount lens attached, the autofocus speed will be slower than when an E-mount lens is attached. (It takes approximately 2 to 7 seconds (based on Sony’s measurement standard).  It may vary depending on the subjects or brightness of the shooting environments.)

    * Firmware upgrade of the Interchangeable Lens Digital Camera NEX-3, NEX-5 (sold separately) is also required.

Applicable firmware version
Mount Adaptor "LA-EA1" with firmware version "Ver.01"

How to check the firmware version

  1. Attach the mount adaptor and the A-mount lens to the camera, then turn on the camera.
  2. Select MenuSetupVersion on the camera.
  3. The firmware version is displayed. If your firmware version is Ver.02 or later, the upgrade is not required.

System Requirements

Supported OS

  • Windows® 10
  • Windows® 8.1
  • Windows® 7

    * 64-bit and Starter editions are not supported.
    ** Starter edition is not supported.

Other system requirements

  • Hard disk space: 200MB or more
  • RAM: 512 MB or more
    * Please close all other application software before upgrading the firmware.

Other Items

  • USB cable supplied with the camera
  • Power source for the camera

    Fully charged rechargeable battery pack NP-FW50 or AC adaptor AC-PW20 (sold separately)

    Note: The upgrade can be performed only when the remaining battery level is/support/attachments/404327/power.PNG(three marks) or more. We recommend that you use a fully charged battery or the AC adaptor AC-PW20 (sold separately).

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