Cactus Wireless Flash Transceiver V6IIS The Cactus V6 IIs is a wireless flash trigger dedicated for Sony camera & flash which supports HSS, & can remote control power output & zoom angle of Sony system flashes. It can also triggers the Cactus V6 II, which makes the V6 IIs the World’s First Sony-supported wireless flash trigger that supports cross-brand high-speed sync (HSS) & control power output & zoom angle of Canon, Fujifilm, Nikon, Olympus, Panasonic & Pentax system flashes all at the same time. Two High-Speed Sync Modes: Normal HSS: Supports shutter speed up to 1/8000s. Power Sync: Boosts flash contribution above camera’s x-sync speed, perfect for extreme conditions where Normal HSS is not powerful enough. AF-Assist: The Cactus V6 IIs has an automatic LED AF-assist light that makes auto-focusing in dark environments possible – even in pitched-black!3 Besides the camera-mounted V6 IIs, off-camera units will also activate the AF-assist light, which helps focusing even when camera is far from the subject. Dedicated For Sony Devices: V6 IIs is specially designed for Sony camera & flashes with the MI (Multi-Interface) hot shoe. Older models with the Minolta/ Sony i ISO shoe are also supported with a hot shoe adapter. So it will be a simple plug-&-play for Sony users & makes the setting up extremely quick & easy that both amateurs & professionals appreciate. Flash Profile Customization: Users may manually choose from popular Sony flash models on the V6 IIs should they wish to. & for those who demands the utmost accurate power outputs they may adjust each power level using the Cactus Profile Editor, a computer-installed software that allows the saving of up to 10 personalized flash profiles. Remote Power & Zoom Control: Besides remote power control, remote zoom control is now available to all compatible TTL flashes, which was only available on Cactus RF60 series Wireless Flash before. This will give photographers much quicker controls by swapping controls of power & zoom settings directly on the V6 IIs. Multi-Master: The V6 IIs allows multiple photographers to trigger off-camera flashes at the same time. Not only is this great for wedding & events, it is also perfect for running photography workshops.