SMDV Hot Shoe Adapter SM-601 for Sony Alpha, Konica Minolta, Maxxum DSLRs that use standard hot shoe flash for Sony A100, A200, A230, A290, A300, A330, A350, A380, A390, A450, A500, A550, A560, A580, A700, A850, A900, SLT-A35, A33, A37, A55, A57, A65, A77 Enable standard hot shoe flash to be used on Sony Alpha/Konica Minolta Camera Safe Sync circuit regulate high voltage flash to 3v, to keep your camera from damage with old flashes. Able to fire external flash with Built-in PC Sync Does not work with flashes 60v or higher; see description for details 24 Month Manufacture Warranty