Sony A7R IV has a Sony E lens mount and currently there are 102 native lenses available for this mount.
A7R IV also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on A7R IV.
Since Sony A7R IV has a Full frame sensor, it has a focal length multiplier of 1x so lenses will provide their original focal length on A7R IV.
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