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Accessories Compatibility Information : RMT-DSLR1
RMT-DSLR1 : Interchangeable Lens Camera α [A-mount]
RMT-DSLR1 : SLT-A57 Compatibility Information
RMT-DSLR1 - SLT-A57 |Compatibility Information
SLT-A57
It is not usable during the movie recording.