Rokinon D870AF-SA Digital TTL Flash for Sony Alpha & Minolta Digital SLR cameras (Black) Guide Number: 26m/85ft; TTL Auto Focus Zoom Position: 35mm; Bounce Position:0-digree/30-digree/45-digree/60-digree//90-digree Recycle Time: 0.3-7 sec; Power Source: 4x AA batteries Power Saving Function Red Eye Reduction