SHENZHEN YONGNUO PHOTOGRAPHIC EQUIPMENT CO. LTD YN686EX-RT 用户手册

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The YN686EX-RT supports wireless radio transmission flash 
shooting,realize wireless TTL,manual and stroboscopic function. As the 
master unit,the speedlite can trigger the YONGNUO and Canon RT 
series speedlites,such as the YN600EX-RT II/YN968EX-RT/600EX 
II-RT/430EX III-RT;as the slave unit, the same YN686EX-RT can 
respectively receive the YONGNUO and Canon RT series speedlites 
and the wireless signal of YN600EX-RT II/YN968EX-RT/600EX 
II-RT/YN-E3-RT/ST-E3-RT.
The flash mode,manual flash output,exposure compensation,exposure 
bracketing,exposure locking and etc settings of the master unit will be 
automatically transfer to each slave unit. 
•

Long press the [Mode]button to enter the 
trigger mode selected interface,rotate the[  
] until the LCD displays the <   

>to 

enter wireless radio master unit state.Short 
press the [MODE] button to swift the flash 
mode of the master unit.

•

Long press the [Mode] button to enter the 
trigger mode selected interface,rotate the[   ] 
until the LCD displays the<  

> t o  

enter wireless radio slave unit state. When 
the YN686EX-RT used as slave unit,the flash 
mode will be totally controlled by the master unit.If the master unit and 
slave unit are set the exposure compensation,the exposure 
compensation value from both units will be superimposed. 

•

In public if there are other photographers in use of the wireless radio 
multiple flash or other radio equipment, you can change the 
transmission channel and radio ID to avoid the interference.The 
YN686EX-RT is equipped with 15 physical channels,an automatic 

channel and 10000 ID for option . 
Channel setting: short press the[    ] button 
to enter the channel setting state,rotate the [ 
] to choose “AUTO” or choose the suitable 
channel from 1 to 15,short press the [SET] 
button for save. 
ID setting:short press the function button [ 

]

to enter ID waiting state,rotate the [  

]to choose the position need to change,short 
p r e s s   t h e   [ S E T ]   b u t t o n   t o   e n t e r   t h e  
responding ID position to adjust the state,then 
rotate the [  ] to choose the required number 
from 0 to 9,and short press the [SET] button 
to save the setting,press the function button [ 

]

to return to the wireless interface. 

In the wireless radio transmission flash 
shooting process, make sure the transmission 
channel and ID setting of the master unit and slave unit are the 
same,otherwise the flash could not work normally. When the master unit 
and the slave unit make connection establishment, the <LINK>indicator 
will be in green light. 

•

You can scan the radio receiving state and automatically or manually set 
the transmission channel of the master unit. 
When the channel set to “AUTO” ,it will 
automatically set the received signal 
channel.When manually set the channel,you 
can reset the transmission channel at the 
same time in the reference scan results. 
Scan setting: short press the function button[ 

]

to enter the scan interface,the flash 

LCD panel will display the scan results,the 
higher the peak of which channel on the 
chart,the stronger the radio the radio signals. 

•

The master flash on or forbid flash （ON/OFF）

When the YN686EX-RT as master unit to 
process wireless radio transmission flash 
shooting,you can choose if the master unit 
participate in the flash or not. When the 
master unit set to ON,the master unit will 
participate the flash as Group A flash.Short 
press the function button 4 to display < 

> , s h o r t   p r e s s   t h e  

function button 1 [ 

]

to set the master unit to ON/OFF.  < 

>means the master unit flash ON， <  >means the master unit 
flash OFF。

•

Short press the function button[  ] o n  
the slave unit and set the slave unit as any 
group of group A,B,C. 
Short press the function button on the master 
unit to set the flash group,each short press[ 

],the setting change will change by: 

RATIO OFF、RATIO A:B、RATIOA:B C（or 
RATIO A:B:C）.Short press the function 
button [  ] and rotate the [  ] to select the 
flash group which need to set the flash ratio 
and flash output,then short press the[ 

]

button to enter the flash parameter 

setting state,through rotate the [  ]to adjust the flash ratio,exposure 
compensation or flash output of the group flash. 

If you need larger output or hope for better 
lighting,you can increase the number of speedlite 
on one slave group for maximum total 15 units. 
For example: if the three slave units set to group 
A,they will be seen as one speedlite and 
controlled by the master unit. 

•

Short press the [mode] button on the master 
unit and set tot Gr mode, then set the slave 
units group with different flash mode and 
flash output through the master unit. When in 
G r   m o d e   f l a s h i n g , u p   t o   5   g r o u p s

（

A/B/C/D/E/F） of speedlite can be triggered 

a t   t h e   s a m e   t i m e . S h o r t   p r e s s   t h e   [  

]

button,rotate the [  ]to select the flash 

group which need to set the parameter,short 
press the [ 

]

button to select the flash 

mode（ETTL、M、OFF）,short press the[ 

]

button and rotate the [   ] to adjust the  

e x p o s u r e   c o m p e n s a t i o n   a n d   f l a s h  
output.After the parameter set press the [ 

]

button to return to the shooting ready 

state.

The YN686EX-RT supports optical transmission wireless flash 
shooting,realize wireless TTL,manual and stroboscopic function.As 
master unit,the speedlite can trigger the YONGNUO EX series 
speedlite(excluding the YN585EX) through the wireless radio 
transmission;as the slave unit, the same YN600EX-RT II can 
respectively receive the wireless signal of YN686EX-RT、YN600EX-RT 
(II)、YN568EX II、Canon 600EX（II）-RT、580EX II、7D/60D/600D 
cameras built-in flash,Nikon built-in flash C command and optical 
transmission wireless signal.
The flash mode,manual flash output,exposure compensation,exposure 
bracketing,exposure locking and etc settings of the master unit will be 

automatically transfer to each subordinate unit. 
The YN686EX-RT in optical transmission wireless flash shooting,up the 
supports A、B、C three groups of slave unit flash control,with total four 
channels（CH1/2/3/4） for option.The setting method of flash grouping 
and transmission channel is the same as the wireless radio transmission 
flash shooting.

•

Long press the [Mode]button to enter the 
trigger mode selected interface,rotate the[  
] until the LCD displays the <   

> t o  

enter wireless radio master unit state.Short 
press the [MODE] button to swift the flash 
modes between the ETTL、M、MULTI three 
flash modes.  

•

Long press the [Mode] button to enter the 
trigger mode selected interface,rotate the[  
] until the LCD displays the<  

> t o  

enter wireless radio slave unit state. When 
the YN686EX-RT used as slave unit,there are Sc、Sn、S1、S2 four 
trigger modes for option.  

S c / S n   t r i g g e r   m o d e   c a n   r e s p e c t i v e l y   r e c e i v e   t h e  
YN686EX-RT,YN600EX-RT(II),YN568EX II,Canon 600EX（II）
-RT,580EX II,7D/60D/600D cameras built-in flash,Nikon built-in flash C 
command and optical transmission wireless signal,realize off camera 
TTL and manual flash.When the YN686EX-RT in Sc/Sn trigger mode,the 
flash mode and flash output of slave unit will be totally controlled by the 
master unit.  
Sc trigger mode:only accept the Canon optical transmission wireless 

flash signal
Sn trigger mode:only accept the Nikon optical transmission wireless 

flash signal

S1/S2 trigger mode is respectively suitable for the manual flash 
environment and TTL flash environment.When the YN686EX-RTin 
S1/S2 trigger mode, the flash mode will default to M mode, the setting 
method of flash output is the same as set top M mode.   

S1 mode: In this mode it will work with the first flash synchronously of 

the master flash, with the result consistent with the use of radio slave. To 
use this mode properly, the master flash should be set to manual 
flash,should not use the TTL flash system with preflight function and the 
red eye reduce function with multiflash. 
S2 mode: It is also called “pre-flash cancel mode” . This mode is similar 

with S1 mode, but it can neglect the pre-flash given by TTL flash. 
Therefore, it can support the master flash working in TTL mode. In 
particular, if S1 mode cannot flash properly and sync with your internal 
flash, you can try to use S2 mode. 

You can custom the flash function according 
to your requirement. Long press the function 
button [ 

]

  t o   e n t e r   t h e   c u s t o m  

function menu,rotate the[  ]to select the 
custom function item(Number,such as C.Fn 
01),short press the[SET]button to enter the 
submenu,change the function settings 
through the[  ] , s h o r t   p r e s s   t h e  
[

SET]button for save settings and exit the 

submenu.After the custom function setting 
completed,press the[  ]button back to the shooting interface. After 
entering the custom function menu,short press the function button [    

]，

then short press the function button[ 

]

will restore the 

custom function to factory default. 
Custom Function supported by YN686EX-RT is as following: 

C.Fn 00 Distance indicator display 
0：m     meter（m））
1：ft      feet（ft）)

C.Fn 01 Power saving mode 
0：ON     Turn on the power saving mode
1：OFF   Turn off the power saving mode

C.Fn 03 Exposure bracketing auto Cancel
0：ON     Turn on the exposure bracketing auto cancel
2：OFF   Turn off the exposure bracketing auto cancel

C.Fn 04 Sequence of exposure bracketing
0：0→-→+     Sequence of FEB is “0→－→＋” 
1：-→0→+     Sequence of exposure bracketing is “－→0→＋”
C.Fn 08 AF-assist beam
0：ON     Turn on the AF-assist beam
1：OFF   Turn off the AF-assist beam

C.Fn 09 Automatic identification sensor
0：ON     Turn on the automatic identification sensor
1：OFF   Turn off the automatic identification sensor

C.Fn 10 Power automatic off of the slave unit 
0:60min   Power automatic off of the slave unit is 60 minutes 
1:10min   Power automatic off of the slave unit is 10 minutes 

C.Fn 11 Slave auto power off timer 
0:8h         Slave auto power off within 8 hours 
1:1h         Slave auto power off within 1 hours 

C.Fn 20 Sound prompt
0：OFF   Turn off sound prompt
1：ON     Turn on sound prompt

C.Fn 22 LCD backlight
0：12sec   The display time of LCD backlight is 12 seconds
1：OFF     Turn off the background light
2：ON       Background light long on

C.Fn 26 Slave unit indicator light 
0：ON     Turn on the slave unit indicator light 
1：OFF   Turn off the slave unit indicator light 

C.Fn 27 LCD Display contrast control
You can adjust the display contrast,total of 7 levels for option.

C.Fn 28 Background Brightness 
You can adjust the background brightness,total of 11 levels for option.

C.Fn 29 Firmware Version 
Display the information of current version for the flash.

SEL/

SET