Sony HVL-F56AM High-Power Digital Camera Flash for Sony Alpha Digital SLR Camera Supplied Accessories - Carrying Case, Mini-Stand Guide Number 56 at 85mm position, ISO 100 Combining ADI Flash Metering, TTL Flash Metering, and Guide Number Control for the highest level of control accuracy Zoom Range - 24 - 85mm, 17mm with Wide Panel Mini-Stand allows for wireless shooting