Powerful flash. Compatible with Canon E-TTL / E-TTL II. Guide number: 58. Fast 2-second flash recycle time. Tilts from -7 to 90° and rotates 270°. 2.5mm sync port and USB interface. AF assist light and sound signals. The Yongnuo YN568EX III Speedlite is an excellent addition to nearly any lighting setup. This model is directly compatible with the Canon E-TTL / E-TTL II system, allowing for use on-camera with automatic exposure and high-speed synchronization. It can also function as an optical TTL master for other Canon-compatible flashes or as an optical TTL slave for Canon or Nikon systems. With a guide number of 58 at ISO 100 and a focal length of 105mm, the flash is very powerful and versatile thanks to its tiltable head that can swivel from -7 to 90° and rotate 270°. To control the light, the flash features a zoom head that can be adjusted from 24-105mm, as well as a wide-angle panel that optimizes coverage for focal lengths of up to 14mm. The device has a quick recharge time of just two seconds. The operation has also been improved: it includes an AF assist light and sound signals. Additionally, it features a 2.5mm sync port and a USB interface for firmware updates. 1x Yongnuo YN-568EXIIIC Speedlite 1x StandTTL flash unit for optimal illumination. The flash unit ensures optimal lighting of your subject even in challenging lighting conditions. The TTL flash automation (Through the Lens) measures through the lens how much light is needed and adjusts the intensity of the flash accordingly. No manual adjustments are necessary; the required amount of light is automatically adapted to the respective conditions. If needed, you can also control the flash manually.