It’s been a little over a year now since Cactus first announced their cross-platform X-TTL system. It came with a flurry of firmware updates to let you get HSS & TTL compatibility across multiple brands of camera and flash. These updates added support for Fuji, Sony, Sigma, Nikon, Olympus, Panasonic and Pentax. But you’ll note that there’s a big name missing from that list.
Cactus’ new firmware update adds that name, by offering support for Canon wireless flash. The new firmware for the Cactus V6 II transceiver allows it to wirelessly communicate TTL information between a Canon or Cactus flash and a Canon camera.