This is something that I know my Pentax, Sigma and Panasonic shooting friends will be pleased with. Nine months after releasing the Cactus V6 II and Cactus V6 IIs, there’s new brand-specific firmware updates coming. These let you get HSS and TTL across different brands of camera and flash. Yes, that’s right, you’ll soon be able to use your SB-900s on your X-T2, or your 600EX II-RT with an A6500.
The firmware is system specific, and they’re releasing it in phases. The first is for Sigma, Sony and Fujifilm. Canon, Nikon, Olympus Panasonic and Pentax will follow. And it’ll work with flashes from a multitude of brands. You’ll even be able to mix and match different brands of flash into the same lighting setup.