Yongnuo Yn-E3-Rt Speedlite Transmitter for Canon Yongnuo Yn-600ex-Rt

Specification:

This item YN-E3-RT Speedlite Transmitter is directly compatible with the Canon 600EX-RT flash, and a coming YongNuo YN-600EX-RT flash unit.

It includes all the features of the Canon ST-E3-RT, as well as extra features including 

- AF Focus Assist light 

- USB port for firmware updates 

- Second curtain sync (in manual only) 

- Full GR Group Mode functionality has also now been added for pre 2012 model cameras 

- Slave flash charge status does not stop other flashes from firing

YN-E3-RT features:

-Two-way 2.4G radio communication, fully compatible with Canon ST-E3-RT/600EX-RT

-Control up to 5 groups (15 units) of Speedlites

-15 Physical Channels, 1 Auto Channel, Up to 10,000 customizable photographer ID

-Transmission Range: 100M

-Multi YN-E3-RT can share slave flashes

-Display group/charge status of slave flashes

-Firmware can be upgraded via USB ( You need to buy extra USB Cable )

-High resolution Dot-Matrix LCD, Backlight for LCD/keys

-Fast lock mechanism

-Built-in AF assist beam emitter, buzzer

-Remote shutter release, Linked Shot ( (Need extra shutter cable for cameras released before 2012)

-Flash Mode: ETTL/M/Multi/GR 4 flash modes 

-A/B/C/D/E 5 groups

-Supports 1st Curtain, 2nd Curtain (Only in M mode), High speed Sync

-Supports ETTL Ratio, Flash Exposure Compensation,Flash Exposure Lock, Flash Exposure Bracket, Modeling Flash

-9 Custom Functions

-Settings saved automatically

-Dust and water resistance equivalent to EOS-1D series cameras

Suit for:

ALL Canon DSLR Camera with E-TTL II / E-TTL autoflash
Canon 600EX-RT
Canon ST-E3-RT
Yongnuo YN-600EX-RT

Package Includes:
1 x YN-E3-RT
2 x Shutter release cable for Canon camera 
1 x Manual in English and Chinese
1 x Protect bag
1 x Original box