YN-600EX-RT is exactly the same function as the Canon's best flash 600EX-RT, same functions, same power, even with same appearance, TTL, HSS, Master...

Features:
1. Supports RT System
One YN600EX-RT can be used as on-camera master unit and remote slave unit of Canon’s RT system, and supports Gr grouping mode.

2. Fully Compatible with YN-E3-RT, Canon’s 600EX-RT / ST-E3-RT Wireless Signal
2.1) One YN600EX-RT can be used as master unit to trigger another YONGNUO YN600EX-RT or Canon’s 600EX-RT, and live display the flash groupings of slave unit and recycling information.

2.2) One YN600EX-RT can respectively receive the wireless signal from master unit YN600EX-RT, YN-E3-RT or Canon’s 600EX-RT/ST-E3-RT, achieving remote TTL, M and Gr flash.

3. 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.

4. Supports USB Firmware Upgrade
The YN600EX-RT equipped with the USB interface, supports firmware upgrade, the users can download the upgrade firmware through the Yongnuo official website to upgrade the flash.

5. 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.

6. Support Auto/Manual Zooming
The YN600EX-RT supports auto and manual zooming, the zoom coverage is from 20~200mm.

7. Settings Save Automatically, Supports Custom Settings (Fn)
The parameters on the flash will automatically save when the flash is turned off; the users can customize the setting of the flash.

8. Ultrafast Charging Recycle System, Supports External Power Supply.

9. Equipped with Big Size LCD Display Screen, Standard PC Synchronous Interface.

Compatible with :

1), Hot shoe TTL mode:
Canon 1Dx, 1Ds series, 1D series, 5DIII, 5DII, 5D, 7D, 60D, 50D, 40D, 30D, 20D, 700D, 650D/T4i, 600D/T3i, 550D/T2i, 500D/T1i, 450D/Xsi, 400D/Xti, 350D, 100D, 1100D, 1000D

2), Wireless TTL Slave mode:
Canon 5DIII 7D 60D 700D 650D 600D, Yongnuo ST-E2, Canon 580EX II
Nikon SB-910, SB-900, SB-800, SB-700, Commander SU-800,
Camera with CLS i-TTL system:D4, D3x, D3s, D3, D2x, D700, D300s, D300, D200, D7000, D90, D80
Canon Commander ST-E3-RT
YONGNUO Commander YN-E3-RT

3), Master Mode, It can trigger these flash:
YONGNUO: YN568EX II, YN568EX, YN565EX, YN500EX, YN560EX, YN510EX
Canon: 600EX-RT, 580EX II, 580EX, 430EX II