GODOX – TT685C – TTL Radio Speedlite – Now Available

Godox TT685C


Godox have released the TT685C speedlite for Canon, a fully featured TTL and HSS enabled flash unit with 2.4GHz radio receiver built inside.

The TT685C are the first component of Godox’s long awaited 2.4GHz TTL radio flash system. Also now accompanied by the X1-C TTL triggers.

And Nikon version TT685N Speedlights are also now available.




As well as a fully featured on-camera ETTL flash, the TT685C will act as an ETTL and HSS enabled Radio Master and Slave flash.




As well as Radio Slave flash to the new X1 TTL transmitter unit (mounted on the camera).

Godox X1 receivers can then also combine other Canon ETTL flashes into the system.

The TT685C are also backward compatible with Godox’s Remote Manual FTR-16s receiver units, currently also used with the Ving V850 and V860 flashes. Godox FT-16 and Cells II acting as transmitter units.




  • GN 60 (m ISO 100)
  • Powered by 4 x AA batteries
  • HSS to 1/8000th
  • Flash Mode – ETTL /M / Multi
  • 1st Curtain Sync / 2nd Curtain Sync
  • FEC / FEB – 1/3rd Increments (±3 stops)
  • Manual Flash – 1/128 – 1/1 output control (1/3rd increments)
  • Flash Zoom 20 – 200mm
  • Radio Master & Slave Modes for Godox 2.4GHz X Radio System
  • Godox Canon / Nikon / Sony TTL Radio Slave Modes
  • Compatible with Godox X1T-C, X1T-N, X1T-S, TTL Transmitters, and X1R-C Receivers
  • Mater Groups A / B / C / D / E  (In GR Mode – Requires 2012 Onwards Cameras)
  • Slave Groups A / B / C / D / E
  • 32 Channels
  • Range to 100 m
  • Compatible with Godox XTR-16s Receiver, & XT-32 / XT-16 Transmitters
  • Compatible with Godox FTR-16s Receivers, & FT-16 Transmitter
  • Optic Master & Slave Modes for Canon Optic Wireless System
  • 3 Remote Groups A / B / C
  • 4 Channels
  • Range – Line of Sight
  • S1 and S2 Optic Slave Modes
  • Recycle Time: 2.6 Seconds at full power
  • Full 360 Degree Swivel, and Tilt Head
  • Large Dot Matrix LCD Screen
  • AF Assist Light
  • Foot Clamping Ring with Locking Pin
  • Sound Prompt
  • Custom Functions
  • Settings Memory
  • Overheat Protection
  • USB Port for Firmware Updates
  • Communication Port (For XTR-16s / FTR-16s Receivers)
  • 2.5mm Sync Port
  • External High Voltage Battery Port



Although resembling the recent Godox V850 and V860 speedlites, the TT685C feature a larger Dot Matrix LCD display with on screen menu options. As well as fully back-lit function buttons, including extra Link and Mode buttons.

More significantly though, instead of Lithium-ion power, Godox have chosen to start with a more traditional 4 x AA battery powered unit. With the option of connecting an external High Voltage Battery Pack for faster recycle times etc.

(A Lithium-ion powered version of the TT685CN (V860II-C) will also be available in the coming months).




The TT685C provide a 3.5mm Sync Port, and USB Port for firmware updates.

As well as a 4 pin communication port backward compatible with Godox’s existing 433MHz clip on FTR-16s Remote Manual radio receivers, also used with the current V850 and V860 speedlites.

The Godox FT-16 and Cells IIc can be used as transmitter units to the FTR-16s receivers.

The Remote Manual FT-16 radio system is also used with the current popular AD360 and AD180 Witstro bare bulb flash units, and many of Godox’s current portable and studio lights. So the new TT685 should also combine with those nicely.




A High Voltage External Battery Port is provided at the front of the flash, for connecting external battery packs like Godox’s popular PB960, or other Canon compatible packs.


Of most significance though, the TT685 also have their own 2.4GHz radio transceiver unit built inside, providing full ETTL and HSS enabled Radio Master and Slave modes. With a stated range of up to approximately 100 meters.

The Godox X1 TTL transceivers can also be used as a Master / Transmitter unit mounted on the camera to control the TT685’s off camera.


Godox X1-C



The X1 receivers will allow Canon, and possibly other third party ETTL compatible flashes, to be combined in the system as ETTL / HSS enables Slave flashes.

The X1 TTL provide a camera shutter release function, and will fire studio lights as well.




Brand Godox
Model TT685C
color Black
Max. Recycle Time 2.6 seconds at full power
Guide Number(m ISO 100) 60M
Color Temperature 5600K±200K
Wireless flash function Master,Slave,S1,S2
Battery AA*4
Power input support
Multi Mode Frequency 1 to 199Hz and Times 2 to 100
Flash Duration 1/300 to 1/20000 second
Flash Coverage Manual zoom from 20 to 200mm
Controllable slave groups 3 (A, B, and C)
Compatible Cameras Canon EOS DSLR(E-TTL II)
Size 64 *76*190 mm
Weight 410g



The TT685C Radio Slave Flash and X1 TTL Triggers will be shown from July 2 – 5 at the Godox stand PE01 at Photo & Imaging Shanghai 2015 exhibition.




The Godox TT685C speedlites for Canon are available now from around $118 –

Ebay, Amazon, UK, Adorama.


The X1 TTL Transceivers are also now available.


Godox – Website.




  1. Shlomi Cohen 7 months ago

    Wolf- go to Manual mode , and then one of the menu buttons would change to s1/s2.

  2. Wolf Dieter 7 months ago

    Thank you Shlomi!

  3. Matt Williams 6 months ago

    Hey Folks,

    I am only slightly familiar with Godox,but they seem to be the best bang for their buck. Just got the TT685C on my 6D. I am having trouble with the AF Assist beam. Can’t seem to get it going. Thoughts?

    • Author
      Flash Havoc 6 months ago

      Hi Matt,

      You don’t have the camera set to AI Servo focus mode by any chance? Because the AF assist is disabled in AI Servo mode.

  4. nixland 5 months ago

    When I use it as slave, the group option only A, B and C. How to activate group D and E ?

    • Author
      Flash Havoc 5 months ago

      Hi nixland,

      Sorry I’m not sure as I don’t have the TT685C here at the moment.

      Godox have made it very confusing just now, as the V860II-C have been updated to include Nikon and Sony radio slave modes etc, while the TT685C have not been yet.

      If you can see the 5 radio slave group in your V860II-C, then they must not have been implemented in the TT685C yet.

  5. jim 5 months ago

    Whats the af assist beam like on this? I use a flash a lot in niteclub work. The canon 5802 has served me well, but need to upgrade and the canon 600 ex is a bit pricey for me at the moment.

    • Author
      Flash Havoc 5 months ago

      Hi Jim,

      The TT685C use a similar lazer style AF light to most current third party flashes from YongNuo etc. They are definitely better than nothing, though depending on zoom length etc its easy for focus points to fall completely between the projected lines.

  6. Mumin 4 months ago

    Hi,i have godox tt685c and godox ad600bm, i use them with x1t-c with no problem with canon.i also want to use them with my fujifilmx100f,as i know the new 2.4ghz godox xt16 have the single pin.if i buy one of them,will i need receiver units ft16r and ft16r-s for the tt685c and the ad600bm or they already have built in 2.4ghz receivers ,the xt16 will trigger them without receivers clipped on them?thank you very much

  7. jay 4 months ago

    does the x1 transmitter capable for HSS? or does it need cells?

  8. Oscar 4 months ago

    I´m having a E5 error on TT685C . How can i fix . Whenever i turn on it shows E5 on the screen and i cannot not do anything.

    • capsi 3 months ago

      @Oscar – I have the same issue and I cannot seem to find anything about it from the manual nor online. Can anyone else in this forum shed some light on what to try?!

      • stefano 2 months ago

        @oscar @capsi I have encountered E5 error on my Flashpoint Zoom TTL for Sony (TT685) , new. I just used it as a remote, happened after a few shots.

        Any updates? I am worrying about the reliability of these flashes.

    • Al 2 months ago

      Any solution for e5 error?

  9. Thanasis 3 months ago

    I have Godox V850 with FT-16 Transmitter and FTR-16s Receiver and i bought Godox TT685c for my 6D.
    Is it posible to set TT865 as master and V850 as slave without my YN-622c Transceiver;

  10. Al 2 months ago

    Any solution for e5 error on TT685C with new update?
    I’m about to get this flash but worry about this error.

  11. Peter Mohr 2 months ago

    Does anyone have experience with this flash and the Canon 80 D – your feedback is much appreciated!

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