Energizer ENF-600S Power Zoom ADI/TTL Flash for Sony DSLRs (Black) Bounce, swivel head and auto power zoom that delivers ample creative lighting options Built-in slave, LCD and diffuser Front and rear curtain synchronization Guide No: 148ft (45m) @ ISO 100 Sony Alpha A35, A37, A55, A57, A58, A65, A77, A99, A100, A200, A230, A290, A300, A330, A350, A380, A500, A550, A700, A750, A850, A900, NEX-7 and Konica Minolta Dynax/Maxxum 5D, 7D digital cameras.