Used Yongnuo YN600EX-RT Flash Speedlite for Canon Cameras

YONGNUO YN600EX-RT YN600-EX-RT Auto TTL HSS Flash Speedlite with Radio Slave for Canon and Same as Canon 600EX-RT.

• Supports RT System The YN600EX-RT can be used as on-camera master unit and remote slave unit of Canon's RT system and supports Gr grouping mode
• Fully Compatible with YONGNUO YN-E3-RT,Canon's 600EX-RT/ST-E3-RT Wireless
• High Guide Number, Supports High-speed Sync. GN60@ISO100,200mm;supports high-speed sync TTL, manual flash, Gr grouping flash, the highest synchronous speed can reach 1/8000s
• Supports USB Firmware Upgrade The YN600EX-RT equipped with the USB interface, supports firmware upgrade
• Supports Wireless Optical Slave function The YN600EX-RT supports YONGNUO, Canon's and Nikon's wireless optical master signal, supports S1 and S2 pre flash cancel mode
• Support Auto/Manual Zooming The YN600EX-RT supports auto and manual zooming, the flash coverage can be changed between AUTO, 20-200mm
• Settings Save Automatically, Supports Custom Settings (Fn) The parameters on the flash will automatically save when the flash turned off; the users can customize setting the flash function as needed
• Ultrafast Charging Recycle System, Supports External Power Supply
• Equipped with Big Size LCD Display Screen, Standard PC Synchronous Interface.