Yongnuo YN-E3-RT


Yongnuo YN-E3-RT Speedlite Transmitter is a commander unit for Canon RT wireless system. RT enabled flash speedlites are currently these models : Canon 600EX-RT, Canon 600EX-RT II, Canon 430EX III-RT and from Yongnuo YN600EX-RT, YN600EX-RT II and YN968EX-RT flash speedlites. It also can work as a commander unit for every other e-ttl flash speedlite if you put YN-E3-RX receiver unit on it. It is a great alternative to much more expensive Canon ST-E3-RT. Yongnuo YN-E3-RT is the best wireless radio transmitter for Canon or Yongnuo RT flash system you can buy. It supports all the features of the original Canon ST-E3-RT, as well as adding few more important features like AF assist beam


Yongnuo YN-E3-RT | Wireless radio commander for Canon

Yongnuo YN-E3-RT Speedlite Transmitter is a direct replacement for very expensive Canon ST-E3-RT speedlite transmitter. It is compatible with all Canon RT enabled flash units like Canon 600EX-RT, Canon 600EX-RT II, Canon 430EX III-RT, and also Yongnuo YN600EX-RT, YN600EX-RT II and YN968EX-RT flash speedlites with built in RT wireless receiver. It supports all the features of the Canon ST-E3-RT, as well as few extra features.

The YN-E3-RT Wireless Speedlite Transmitter for Canon from Yongnuo is a 16 channel, 5 group wireless triggering device with a 100m range. The transmitter offers E-TTL II/E-TTL autoflash, manual flash, stroboscopic flash, auto external flash metering modes as well as 1:8 flash ratio control

Convenience features include flash exposure lock, AF beam focus assist, modeling strobe and 9 custom functions. The YN-E3-RT transmitter will run for 10 hours of continuous use on AA/LR6 alkaline batteries. A power saving function shuts the unit down after being idle for 5 minutes to conserve batteries.

The Yongnuo Speedlite Transmitter YN-E3-RT is a transmitter for wireless flash shooting. It can control up to 5 groups (15 units) of speedlites that have a wireless multiple flash shooting function using radio transmission. The transmitter also has dust and water resistance equivalent to EOS-1D series cameras

Yongnuo YN-E3-RT includes all the features of the Canon ST-E3-RT, as well as adding few extra features:

  • AF Focus Assist light which is the very useful feature.
  • USB port for firmware updates
  • Second curtain sync (in manual only)
  • Full GR Group Mode functionality has also been added for pre 2012 model cameras
  • Slave flash charge status does not stop other flashes from firing


  • Yongnuo YN-E3-RT is able to control up to 5 groups (15 units) of flash speedlites
  • Two-way 2.4G radio communication, fully compatible with Canon ST-E3-RT/600EX-RT/other RT enabled units
  • Mix TTL, Remote Manual, and Super Sync Groups
  • Flash Modes: ETTL/M/Multi/GR 4 flash modes
  • Sync mode ( 1st curtain, 2nd curtain sync(only in Manual mode), Hi-speed sync ( Auto FP ) )
  • Max Sync. Speed: 1/8000s
  • Trigger Interface: Hot shoe, PC port
  • Individual 1/3rd stop Manual Power and FEC adjustments
  • Supports E-TTL Ratios, Flash Exposure Compensation, Flash Exposure Lock, Flash Exposure Bracketing, Modeling Flash
  • 2nd Curtain Sync, HSS, SuperSync
  • USB port for Firmware Updates. Check the firmware downloads page for the latest firmware version.
  • AF Assist Light to help camera focus in low light situations
  • Remote Shutter Release Function
  • Dedicated Buttons for Fast Adjustments
  • Battery Level Indicator
  • 2.5mm shutter release interface (You get two cables in package, C1 and C3 for different Canon cameras)
  • Fast lock mechanism
  • 15 Physical Channels, 1 Auto Channel, Up to 10,000 customizable photographers ID
  • Improved Stability and Transmission Speed
  • SuperSync Manual Timing Adjustment by Group
  • Flash Value Lock function (FVL)
  • Modeling Flash & Red-Eye Reduction flash
  • 9 Custom Functions
  • Settings Saved Automatically
  • Up To 100M Range


Frequency2.4GHz (2405 – 2475 MHz)
Range328′ (100 m)
TTL DedicationE-TTL / E-TTL II
Wireless radio ID:0000-9999
Groups5 (A,B,C,D,E), up to 15 units
Flash modesTTL, manual, Multi
Sync mode1st curtain, 2nd curtain, high-speed sync
Max sync speed1/8000 sec
DisplayHigh-res dot-matrix LCD, backlight for LCD keys
Flash ControlFlash ratio control: 1:8 in 1/2-stop increments
Flash exposure compensation: +3 to -3 in 1/3 stop increments
Manual: 1/1 to 1/128 power (1/3-stop increments), 1st and 2nd curtain
Stoboscopic flash: 1 – 500 Hz
Flash exposure lock
Modeling FlashYes
AF assist beamYes
InterfaceTriggering: Hot shoe, PC port
Shutter Release: 2.5mm
Firmware Upgrade: mini-USB
Battery2x AA/LR6 alkaline batteries, NiMH batteries (not included)
Battery lifePower saving: powers off after 5 min. without use

Up to 10 continuous hours with AA/LR6 batteries

Dimensions67.7 x 66.7 x 81.3mm
Weight3.8 oz (110 g)
Package Weight0.5 lb
Box Dimensions (LxWxH)4.4 x 3.6 x 3.1″



Compatible Cameras: All Canon DSLR Cameras with E-TTL II / E-TTL autoflash: Canon 5D Mark II, 5D Mark III, 5Ds, 5DsR, 1Dx, 1Ds Mark III, 1D Mark IV, 1D Mark III, 7D mark II, 6D, 70D, 7D, 60D, 50D, 40D, 450D, 500D, 550D, 600D, 650D, 700D, 750D, 760D, 1000D, 1100D, 1200D, 5D, 10D, 20D, 30D, 300D, 350D, 1D, 1D Mark II and any other newer Canon DSLR camera

Compatible Flashes:

Canon: 600EX-RT, 430EX III-RT, Canon 600EX-RT II

Yongnuo: YN600EX-RT, YN600EX-RT II, YN968EX-RT

Yongnuo YN-E3-RT can be used with any other E-TTL flash speedlite in combination with Yongnuo YN-E3-RX receiver.

Yongnuo YN-E3-RT – Package includes:

  • 1x Yongnuo YN-E3-RT master controller for Canon/Yongnuo RT enabled flash speedlites
  • 1x LS-2.5/C1 Shutter Connecting Cable
  • 1x LS-2.5/C3 Shutter Connecting Cable
  • 1x Protection case
  • 1x Instructions in English and Chinese
  • 1x Original Yongnuo Box
Additional information


Trigger Sync


Trigger Type


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