Sony A7S III has a Sony E (NEX) lens mount and currently there are 137 native lenses available for this mount.
A7S III also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on A7S III.
Since Sony A7S III has a Full frame sensor, it has a focal length multiplier of 1x so lenses will provide their original focal length on A7S III.
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Sony A7S III Lenses with Image Stabilization
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