Sony A7RIII ILCE-7RM3A Operating Instructions Manual page 163

Help Guide
Interchangeable Lens Digital Camera
ILCE-7RM3A
α7RIII
LA-EA2/LA-EA4 Mount Adaptor
If you use the LA-EA2 Mount Adaptor (sold separately) or LA-EA4 Mount Adaptor (sold separately), the following
functions are available.
Full frame shooting:
LA-EA2: Not available
LA-EA4: Available with full frame shooting-compatible lenses only
Autofocus:
Available
AF system:
Phase Detection AF, which is controlled by the dedicated AF sensor inside the Mount Adaptor
AF/MF select:
Lenses that do not support DMF (with a focus mode switch): Can be changed using the focus mode switch on the lens.
Lenses that support DMF (with a focus mode switch): Can be changed using the focus mode switch on the lens. When
the focus mode switch on the lens is set to AF, you can change the focusing method by operating the camera.
Other lenses (without a focus mode switch): Can be changed by operating the camera.
Focus Mode:
LA-EA2: Single-shot AF/Continuous AF/DMF*
LA-EA4: Single-shot AF/Continuous AF/Automatic AF/DMF*
*
Only available when using lenses that support Direct Manual Focus.
Even if [Priority Set in AF-S] is set to [Balanced Emphasis], it will temporarily switch to [AF].
Even if [Priority Set in AF-C] is set to [Balanced Emphasis], it will temporarily switch to [Release].
Available focus area:
Wide/Center/Flexible Spot/Lock-on AF
SteadyShot:
In-body
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