Master unit in flash system
The master is the unit that triggers the other flashes (slaves) to go off. As a master unit you may have dedicated speedlite transmitter or speedlite flash with Master mode. It is common that higher-end speedlites support master mode, either optical or radio master mode.
Besides genuine Canon or Nikon speedlites, there are also flashes of other brands that can act as a master unit in Canon and Nikon wireless flash system. We will mention just few of them. Yongnuo YN568EX II supports optical master mode for Canon wireless system. Pixel X800C Pro and X800N Pro support both optical and radio master modes, as well as Godox TT685C and TT685N. Meike MK910 for example supports only optical master mode for Nikon CLS system.
There are numerous speedlite transmitters which act as master units in the wireless flash systems. Yongnuo YN-E3-RT, YN622C-TX, YN622N-TX, YN560-TX wireless transmitters are capable of controlling flashes as well – therefore acting as the Master. Pixel King Pro, Godox X1C and X1N also act as master units. On the contrary, the slaves are a group (or groups) or flashes controlled by the master unit.
Below is the list of all speedlite flashes and wireless triggers/commanders that can act as master units.
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Yongnuo YN560-TX PRO Flash Controller for Canon
Yongnuo YN560-TX PRO Flash Controller for Canon is the new generation of flash triggers from Yongnuo which starts a completely new radio system that integrates the YN560-TX and YN-622 Radio Systems into one cohesive system
Yongnuo YN560-TX PRO Flash Controller for Nikon
Yongnuo YN560-TX PRO Flash Controller for Nikon is the new generation of flash triggers from Yongnuo which starts a completely new radio system that integrates the YN560-TX and YN-622 Radio Systems into one cohesive system
Yongnuo YN-E3-RT II Wireless Speedlite Transmitter for Canon
Yongnuo YN-E3-RT II Wireless Speedlite Transmitter for Canon is a compact radio transmitter which sits on the camera’s hotshoe and can control speedlites such as the Yongnuo YN600EX-RT II or the Yongnuo YN968EX-RT. It is also compatible with the newer range of Canon’s radio-enabled speedlites such as the Canon 600EX II-RT, 600EX-RT and the 430EX III-RT
Yongnuo YN622N Kit
Yongnuo YN622N Kit for Nikon is a combination of YN622N-TX commander unit and YN622N trigger. These wireless triggers are one of the world’s most popular choices for multiple flashes photography. YN622N triggers support i-TTL, HSS, manual, multi modes, Flash Exposure Compensation, Flash Exposure Bracketing, modeling Flash, i-TTL group ratios and much more…
These are one of the best triggers on the market currently. YN622N triggers paired with YN622N-TX master controller have all the same functions as much more expensive Phottix Odin, Pixel Kings or Pocket Wizards. We have never heard of someone who is not impressed with Yongnuo YN622N triggers.
Yongnuo YN622C Kit
Yongnuo YN622C Kit for Canon is a combination of YN622C-TX commander unit and YN622C trigger. These wireless triggers are one of the world’s most popular choices for multiple flashes photography. YN622C triggers support E-TTL (II), HSS, manual, multi modes, Flash Exposure Compensation, Flash Exposure Bracketing, modeling Flash, E-TTL group ratios and much more…
These are one of the best triggers on the market currently. YN622C triggers paired with YN622C-TX master controller have all the same functions as much more expensive Phottix Odin, Pixel Kings or Pocket Wizards. We have never heard of someone who is not impressed with Yongnuo YN622C triggers.
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 YN622N-TX
Yongnuo YN622N-TX is the ultimate remote controller for your YN622N system. The YN-622N-TX is designed to provide easy control of speedlites on existing YN-622N (II) radio transceivers or YN685 flashes with built in YN622N receiver. From the LCD menu control you have easy access to mixed use of the A/B/C flash groups using i-TTL, manual, or super sync flash mode. You can also adjust the exposure compensation and flash output for each group. In addition, it supports setting different focal length (zoom) of the three groups. You get a massive remote control range of up to 100 meters. 7 wireless channels and a super handy AF assist beam emitter for focusing help in low light. Firmware updates are frequently released and are possible through the built in usb connection.
Yongnuo YN622C-TX
Yongnuo YN622C-TX is the ultimate remote controller for your YN622C system. The YN-622C-TX is designed to provide easy control of speedlites on existing YN-622C (II) radio transceivers or YN685 flashes with built in YN622C receiver. From the LCD menu control you have easy access to mixed use of the A/B/C flash groups using E-TTL, manual, or super sync flash mode. You can also adjust the exposure compensation and flash output for each group. In addition, it supports setting different focal length (zoom) of the three groups. You get a massive remote control range of up to 100 meters. 7 wireless channels and a super handy AF assist beam emitter for focusing help in low light. Firmware updates are frequently released and are possible through the built in usb connection.