The Yongnuo YN568EX III is a full-featured TTL speedlite with High-Speed Sync up to 1/8000s and a built-in 2.4G radio compatible with Yongnuo's YN622 / YN560-TX system. At GN58 it's a capable main or fill flash for portraits and events.
Choose the version for your system: Canon (E-TTL II) or Nikon (i-TTL).
