Sony announces compact HVL-F45RM radio-controlled flash

Sony has announced its new HVL-F45RM external flash. This compact flash is 'ideally suited for a7-series' and offers a guide number of 45m (at ISO 100), 2.5 sec recharge time andthe ability to take 210-shot bursts. It also has a built-in LED lamp for video recording. The HVL-F45RM can control up to five groups of radio-controlled flashes, with a 30m range. With three flashes per group, that's a total of 15 external strobes. It can also control three groups via 'optical' control. As you might hav...