Article ID : 00021282 / Last Modified : 09/16/2020

What is the difference between the LA-EA1, LA-EA2, LA-EA3, and LA-EA4 lens mount adapters?

    The general features are described below for each mount adapter. Features may differ according to the combination of camera and lens used and the settings, if model-specific information is needed refer to the operating instructions supplied with the product.

    Make sure that the camera, lens and mount adapter use the latest firmware.

    If you need more information about compatibility between the cameras and lenses, visit the Lens - Compatability information site

    Function LA-EA1 LA-EA2 LA-EA3 LA-EA4 LA-EA5
    Features Supports APS-C sensor

    Supports APS-C sensor
    Built-in AF sensor and AF motor using translucent mirror technology

    Supports 35mm full-frame sensors
    High-speed continuous shooting with AF/AE is available with supported cameras.

    Supports 35mm full-frame sensors
    Built-in AF sensor and AF motor using translucent mirror technology

    Supports 35mm full-frame sensors
    High-speed continuous shooting with AF/AE is available with supported cameras.
    Built-in AF motor
    Small cylindrical shape

    Auto focus in Still Image Mode AF is available with only SAM/SSM lenses. AF is available*2 with all Sony A-mount lenses.*1 AF is available with only SAM/SSM lenses. AF is available*2 with all Sony A-mount lenses.*1 AF is available with all Sony A-mount lenses*1 in combination with a supported camera.
    AF is available with only SAM/SSM lenses when used with other cameras.
    Auto focus in Movie Mode AF operates when the shutter button is pressed halfway when using a lens noted in “Auto focus in Still Image Mode” in the line above.*2 AF is available*2 with all Sony A-mount lenses.*1 AF operates when the shutter button is pressed halfway when using a lens noted in “Auto focus in Still Image Mode” in the line above.*2 AF is available*2 with all Sony A-mount lenses.*1 AF operates when the shutter button is pressed halfway when using a lens noted in “Auto focus in Still Image Mode” in the line above.*2
    AF system Focal plane phase-detection AF or Contrast AF depending on the camera used. Phase-detection AF (Sensor built into the mount adapter) Focal plane phase-detection AF or Contrast AF depending on the camera used. Phase-detection AF (Sensor built into the mount adapter) Focal plane phase-detection AF or Contrast AF depending on the camera used.
    Available AF Mode AF-S, AF-C, AF-A, DMF
    Eye AF is also available when using focal plane phase-detection AF.*3
    AF-S, AF-C, AF-A, DMF
    Eye AF is unavailable. *4
    AF-S, AF-C, AF-A, DMF
    Eye AF is also available when using focal plane phase-detection AF.*3
    AF-S, AF-C, AF-A, DMF
    Eye AF is unavailable.*4
    AF-S, AF-C, AF-A, DMF
    Eye AF is also available when using focal plane phase-detection AF.*3

    *1 STF lenses are manual focus only lenses, so auto focus does not operate.
    *2 Manual focus only depending on the camera used.
    *3 Eye AF may be unavailable when using the mount adapter, depending on the camera used.
    *4 Differs depending on the combination of camera and lens used.