GODOX X1T-O Transmitter – For Olympus / Panasonic Announced

Godox X1T-O


Godox have announced the X1T-O / Flashpoint R2 transmitter for Olympus and Panasonic camera systems.

The X1T-O transmitter provides TTL, HSS, SCS, as well as a HSS timing adjustment.

And the X1T-O can trigger and control Godox’s complete range of 2.4HGz enabled flash units.

Legacy remote manual Godox strobes can also be fired and manually controlled via the X1T-O transmitter, when using XTR-16 receivers.


Godox X1T-O


The X1T-O provide a group style interface allowing up to 5 groups. And groups can be individually set to either TTL, Manual, or Off.

And importantly TTL and Manual Groups can be conveniently mixed together as needed.


Godox X1T-O




  • Godox 2.4GHz X Radio System
  • Range – 100m +
  • Flash Modes – TTL / M / OFF
  • HSS to 1/8000th
  • Second Curtain Sync (Set Via the Camera)
  • FEC / FEB – 1/3rd Increments (±3 Stops)
  • FEL (Flash Exposure Lock)
  • Manual Flash – 1/128 – 1/1 Output (1/3rd Increments)
  • Remote Flash Zoom (Auto / Manual) (Global for All Groups Only)
  • Groups – A / B / C / D / E  (5 Groups)
  • 32 Channels
  • Large LCD Display with Back Light
  • HSS Delay Setting – 0~19.9ms, (100us Increments)
  • Modeling flash
  • Auto Memory Function
  • AF Assist Light (Manual)
  • Micro USB Port for Firmware Upgrades
  • Transmitter PC Sync Port – Input & Output





At the time of release the following cameras models have been tested compatible by Godox-

Godox X1T-O



Godox X1T-O




The Godox X1T-O TTL transmitters are available for pre-order now from approx $46 –



Godox – Website


  1. JL Williams 3 years ago

    They haven’t tested the E-M 5, E-M 5 Mk II, or E-M 1 Mk II? Or they have tested them and found them not to be compatible??

    • Lisa Warren 3 years ago

      I would love to hear the answer to this.

      • Author
        Flash Havoc 3 years ago

        Its usually just that Godox haven’t tested them, and therefore are not claiming full compatibility.

        Though in this case I’m not sure because the EM-5 II are listed as compatible with the TT350O flash. So the engineers obviously have the camera to test with, so I’m not really sure.

        • Lisa Warren 3 years ago

          I hope they will announce these when they test. I have the Nikon flashes and I understand they will work with this transmitter will work with these.

          • Author
            Flash Havoc 3 years ago

            Going by the other combinations already available so far they should work with remote power control and HSS, though chances are TTL will likely not work with Nikon speedlites and the X1R-N receivers.

            So if its just the Nikon speedlites you want to use, you may actually be better off looking at the Cactus V6II at this stage.

            EDIT – Sorry if you meant Nikon version Godox flashes like the V860II/TT685N, then TTL, HSS, and remote manual power control should all work with the Godox Olympus/Panasonic transmitters/mater flashes.

    • Ulysses Ashton 3 years ago

      The X1T-O works beautifully with the Olympus flagship E-M1 Mark II.

      EDITED – And if you’re using it to trigger a V860II for Nikon, it works beautifully in TTL and in HSS.

      • Ulysses Ashton 3 years ago

        Sorry about my typo. I meant to say an X1T-O for Olympus can trigger and accurately control a V860II-N for Nikon in both Manual and TTL mode.

        Here’s a little test I performed last night to add to the discussion here. Hope it helps with some of the questions from excited Olympus, Panasonic, and Fuji shooters.


        • Author
          Flash Havoc 3 years ago

          Thanks Ulysses,

          I edited your comment so that I think it says what you meant now.

          Also edited my comment above as I though Lisa was referring to using genuine Nikon speedlights.

          • Ulysses 3 years ago

            Awesome, thanks for having my back! 🙂

            I’m pleasantly surprised that there’s been a lot of excitement over these tools for Olympus and Fuji shooters. If early responses are any indication, I expect Godox and sellers to be just as pleased by photographers — both pro and enthusiasts — buying these. The way I see it, they’re a doorway to the larger Godox X System of lighting for a generation of photographers who previously had rather few satisfying lighting options available to them, let alone an advanced radio-wireless system of flashes and strobes.

      • eduardo 3 years ago

        so you can use every version of a (godox) flash in any brand of camera, and only need the specific trigger for your camera? V860ii for canon can be used with x1t O on an olympus camera and remain ttl, hss, 2d.. curtain an so on? please confirm i understand it .really to good to be true.

    • Rick 3 years ago

      I beleive the OMD em5 has a different pin-out on the Hotshoe then the MKII and the EM1

  2. ramin 3 years ago

    flashhavoc; How about the Fuji version? I’ve been expecting to hear this one from you. Take a look here this one is one week old already: http://www.fujirumors.com/first-image-godox-x1t-f-flash-trigger-fujifilm/

    Also why is Godox still making this ugly and bulky X1 trigger and not the X32?

    • Author
      Flash Havoc 3 years ago

      Hi Ramin,

      I’m really not sure whats happening with the XT32. I can only assume Godox want to concentrate on the X2 at this stage.

      The XT32 don’t do TTL, though they don’t have flash zoom or modelling light power control etc either, so I can only guess Godox would want to concentrate on the X2 first which should cover more functionality.

      I would think they will announce the X1T-F pretty soon.

      • Mario 3 years ago

        XT32 don’t do TTL?? Surely wrong, Elvis.

        • Hans 3 years ago

          It’s true, no TTL but I hate TTL so that’s fine by me. I really want the XT32F. I pre-ordered the X1T-f anyway just to show them the demand for Fuji stuff is there. I can always use it as a backup remote anyway once the XT32F comes out.

          • Author
            Flash Havoc 3 years ago

            Again I’m really not sure whats happening with the XT32. Godox changed their page to state just Canon and Nikon versions. And last I asked Flashpoint they were not aware of new models coming yet.

            Maybe Godox will wait and see what the reaction is like to their X2, and the Flashpoint version. Because even if you don’t use TTL they should have more functions, like zoom control and modelling light control.

            And they are more slimline than the X1. Provided Godox don’t mess things up in the mean time, I would certainly prefer the Flashpoint X2 over the XT32, even for manual use.

            In any case though I don’t think its worth holding your breath waiting, the X1 are the way to go for now.

            • Charles 3 years ago

              Is there a page or anywhere that I can read up on the x2 transmitter? Or perhaps you can elaborate on it a bit more in terms of whatever information you can share? I’ve been using the x1 since it has been released and can’t wait to have it updated and hopefully more efficient for fast paced shooting. The small comments you drop every now and then about the x2 is really interesting me. I come here everyday in hopes of finding out something new about the x2 and have more interest in it right now compared to any other news.

              • Author
                Flash Havoc 3 years ago

                Hi Charles,

                Unfortunately I’m not really meant to be giving out any specifics on the transmitters. I know its frustrating being completely in the dark though so I’ve tried to offer some insight without being too specific.

                As I’ve mentioned previously, there are currently separate Flashpoint and Godox versions. The case and button layout is different between them, though they share the same LCD screen, and likely most of the LCD interface functions.

                So both transmitters will have a large dot matrix LCD capable of displaying 5 groups at a time. And one of my requests was that they have a large single group display option as well (though I don’t know for sure yet if Godox will follow through with that).

                Both transmitters will have individual group buttons, though in different locations, and the Flashpoint version has a lot more buttons for quick access to functions.

                The physical layout and hardware are basically locked in now and we are waiting on the first working sample. Its been a couple of months now though so I wouldn’t be surprised if Godox have it 95% finished to the way they want it before we see anything, and then we will have to try and work backwards from there if things needs refinement or changing etc.

                Its still possible we could have something really good, though I’m still very nervous it could go either way, becasue Godox have been on a different page from the start, and its still easy to mess things up from here. The X1 for example don’t need to be half as difficult as they are now, even with the current hardware restrictions.

                Fingers crossed 🙂

                • Charles 3 years ago

                  Thank you so so much for this information all layed out like that. It’s very exciting to read and will definitely satiate my appetite for the news about it for now.

                  Of all the transmitters I’ve used in the past, to me, the one with the perfect physical layout has been the Phottix Strato multi transmitter. The fact that you can physically just press ABCD to go to the different groups helped me out so much with my setup (3 or 4 different groups on the reception dance floor) that I was sad to have to switch over to the Godox transmitters when I switched systems.

                  Knowing that the x2 has more physical buttons is such great news!

                • Wayne 3 years ago

                  This thing sounds fantastic to me. I really didnt like the X1 layout and finally sold it and used the 860ii on camera as a master and in most cases would use the xt-32 unless I absolutely had to have ttl. The interface/screen on the xt-32 just seemed so much easier for me.

                  Elv any way you could give just a guess as to when something like this would come out, (ie: 3’rd/ 4’th quarter 2017 or 2018…..anything at all ? 🙂 )

                  • John Wilson 3 years ago

                    I certainly like the XT-32 form factor better than the X1T’s. However the X1T does have some advantages (aside from supporting TTL) for example being able to adjust all groups at the same time.

                    I found that setting it to control 3 groups rather than 5 and selecting the group to change with the GR button rather than the scroll wheel really improved the usability of the trigger.

                  • Author
                    Flash Havoc 3 years ago

                    Hi Wayne,

                    I think with the Godox version at least they do want to start getting them out as soon as possible. Which realistically (now that we are already in the 3rd quarter) would have to be closer to 4th quarter 2017.

                    With the Flashpoint version at least there have been a few developments over the last few days, and there are still a few major considerations up in the air. Its always a balance between time cost and features / functions etc, though at this point I’m hoping they choose to spend the time to get the better end product.

                    • DenseAlloy 3 years ago

                      Thanks for keeping everyone up to date.
                      I was going to purchase another X1 but found this so I am getting a 32 as a backup because the layout is SO much better than the X1 and get a X2 since I do shoot TTL occasionally. Will the two versions Godox/Flashpoint work on the others systems? I ask since I am a Godox (I have 6 of their flashes) and am not familiar with FP (I am under the impression it was a simple logo change) but with 2 separate X2, I am not sure.
                      I am so glad I found this site!!!

                    • Author
                      Flash Havoc 3 years ago

                      Hi DenseAlloy,

                      Yes the Godox and Flashpoint version X2 transmitters will both work with both systems.

                      Up until now the Godox and Fashpoint gear have been the same products with different branding, so both of the new transmitters will have to work with all the same flashes.

                      Flashpoint have made a number of improvements to various products up to this point, though they have all flowed on to the Godox branded gear as well. So the new Flashpoint transmitter may be the first time we do see a distinctly different product compatible with the Godox system.

    • deejjjaaaa 3 years ago

      > Take a look here this one is one week old already:

      we are waiting for Godox to fix a firmware bug in X1T-S for > 6 month already … so one week is nothing

  3. Olaf 3 years ago

    I’m confused by the statement
    “And the X1T-O can trigger and control Godox’s complete range of 2.4HGz enabled flash units.”

    But the AD360 II for instance is dedicated to a certain camera brand (Canon, Nikon, Sony, but no Olympus).
    May be the branding is important only when used on camera as master ?
    In this case I could take the Olympus trigger (on camera as master) and then buy any of the AD360 II .

    May it’s better to wait for the X2 anyway.

    • Author
      Flash Havoc 3 years ago

      Hi Olaf,

      Yes as CyberDyneSystems replied below, the dedicated brand specific aspect is only important when using the flash on camera, or as master on camera.

      So yes you would need to buy a Canon or Nikon version AD360II.

      With the success of the AD200 I seriously doubt Godox will make more versions of the current AD360II. Next time they will surely be an off-camera cordless strobe like the AD200. (Though they are not development one for now).

  4. Mark 3 years ago

    This is certainly good new to the m4/3 world. Though I wish that Godox would improve the GUI on this thing, it is a pain to use. Very slow.

  5. CyberDyneSystems 3 years ago


    The brand specific aspects of any Godox 2.4GHz light is only applicable when it is master. As a Slave,. I believe all of them will work with any of the brand specific transmitters. ie: A Canon AD360II can be triggered by an X1-T for Nikon.

    this from the main Godox page on this website

    “Another major feature is the intercompatibility between Canon, Nikon, Sony, M4/3 and Fuji systems. So all of the speedlites and strobes in the Godox 2.4GHz system now provide Auto Sensing radio slave modes for Canon, Nikon, Sony, M4/3, and Fuji .

    This means you can use Canon, Nikon, Sony, M4/3, and Fuji version transmitter units, or master speedlites, with the same set of slave strobes and speedlites, and they will automatically switch to the corresponding slave mode as required. And this includes full TTL functionality where available.”

  6. Ricardo Gomez 3 years ago

    Haha! Awesome answer to my eMail from a few days ago!

    I thought having the appropriate transmitter for the firmware upgrade was going to take a month or two. Standard camera gear SOP. But damn, this was fast! Excellent job Godox!

    Finally, finally a quality lighting system for m43. I’ve been using an Einstein system in manual mode and I’ve really liked the results. But tuning the settings is such a time suck. Not to mention when you have a highly mounted modifier, you have to bring it back down to make adjustments.

    Godox, I hope you are highly rewarded for your work!

    • Author
      Flash Havoc 3 years ago

      Hi Ricardo,

      Sorry I was meaning to get to your email reply!

      • Ricardo Gomez 3 years ago

        Oh no Elvis. No problem at all. I thought the time in-between my eMail and the posting was funny. Kinda like “Oh, I’ll let him wait because this posting is going to floor him!” I apologize if my original posting sounded negative.

        You know from my previous questions about m43 lighting systems, that these recent announcements from Godox is fantastic news. I was looking at the Profoto system and hoping with their recent adoption of Olympus MFT, that Panasonic support would be a given. I inquired but no Panasonic support yet. And as much as I love Profoto gear, those B1(X) Airs are bank. But if nothing else support HSS and/or TTL on MFT natively, what choice do I have?

        I really love the Godox ecosystem and what they’re doing. They can be a dominant force in the low to midrange photography demographic if they want.

  7. Marc 3 years ago

    I’m also interessted in the mft version of the X1T but on question bugs me to which I haven’t found an answer yet. I do have two Oly flashes and would like to use them for FP sync work (FL50 and FL36). Is it possible to just buy 3 X1Ts and use one as transmitter while the others trigger the flashes as receiver in FP TTL mode?
    Or will I have to buy two 685s and only one X1T to achive this setup?

    Thanx already for feedback!

    • Author
      Flash Havoc 3 years ago

      Hi Marc,

      The X1 transmitters can not work as receivers unfortunately. So yes at this stage you would need to get some Godox radio slave speedlites like the TT685.

      Might be a good opportunity to upgrade to an AD200 instead though 🙂

  8. Marc 3 years ago

    Thanx for that info! Do yo knowif there will be x1r for mft in the near futue?

  9. Ulysses 3 years ago

    I have the X1T-O… V860II-O… TT685-O… and TT350-O… from Godox for testing. Here’s a little introductory video about them (not sure if the link will show up and be clickable here on Flash Havoc). I’ll try to produce more as I have the time. If anyone has questions, I can also try to help answer.


    • Marc 3 years ago

      Thanx Ulysses!
      That is great anyway 😉
      But since I lile my FL50 and FL36 i’d like to continue using them. Thats why I asked about the X1R. As one can see the X1T doesn’t support a top mounted flash in TTL mode since there is only one pin which I think is pitty.
      So do you know if there will be a X1R-o?
      And good video btw!

    • Marc 3 years ago

      Hi Ulysses!
      I just received my x1t’s and in the manual the tt685o and the tt860iio are already mentioned. Do you by chance can tell anything about a release date for those units?
      My tt600 are still on their way so I can’t test the triggers funtionality, but it would be awesome to get my hands on ttl capable oncamera godox flashes and test ttl functionality!

      • Marc 3 years ago

        Nevermind! You ca already order the TT685O on Amazon.com.
        Estimated delivery is expected by end of August…

      • Ulysses 3 years ago

        Marc, yes… the TT685Ⓞ and the V860IIⓄ should be available for ordering within the next couple months, from what I hear. I already have the production-level models in hand, and they work well.

        Flash Havoc (Elv): I believe I’m onto a bug which seems to affect the system universally. I do not know when this was introduced. Let’s start with two cameras, each with an X1T (brand might not matter), and you set one of them for TTL and the other for Manual. They are alternately each triggering the same slave lights. But the one with TTL will essentially take over the triggering. The X1T in Manual mode can trigger the lights, but cannot change the power level. The only thing that snaps the system out of it is pressing the TEST button on the X1T in Manual mode. However, as soon as the X1T in TTL triggers again, the system locks into TTL. Others have confirmed this issue. I believe Godox needs to address this because lots of pros (and many enthusiasts) may use one camera in Manual mode and another in TTL depending upon the needs of the shoot. Thanks if you can get a message to them to examine this!

        • Author
          Flash Havoc 3 years ago

          Hi Ulysses,

          I’m still trying to get my head around how this works now myself. The different gear has updated settings in different ways from the beginning, and I think that’s possibly changed numerous times along with the many firmware updates.

          I assume you are mainly referring to the X1T-O transmitter though? The current X1T-C and X1T-N firmware at least now provides a new custom function, C.Fn-08 and C.Fn-09 respectively, which if turned ON updates the slave strobe settings before each shot. And the appears to work in TTL or Manual.

          The V860II-C does not have this custom function option though, and I have to press the test fire button (or adjust settings) to update the slave flash before taking a shot.

          Is there a C.Fn-08 (or C.Fn-09) in your X1T-O transmitter by any chance?

          • Ulysses Ashton 3 years ago

            Sorry I’m so late seeing your reply. For some reason I didn’t get a notification about the thread, so I’m glad I checked back. 🙂

            I’m just a little slow with regard to C.Fn-09 on my X1T-N. I still don’t truly understand how it’s supposed to help when activated. And more importantly to me, if it helps somehow when multiple X1T units are firing the same strobes.

            And regarding the X1T-O… YES! It has an undocumented C.Fn-08. There is no instruction about it in the current owners manual.

            • Author
              Flash Havoc 3 years ago

              No worries.

              With C.Fn-09 turned ON, on the X1T-N the slave strobe settings should be updated before each shot.

              With C.Fn-09 turned OFF on the X1T-N you should need to press the test fire button (or adjust settings) to update the slave flash before taking a shot.

              That’s the way the Canon version are currently working anyway. So if you are using 2 transmitters with different settings, it should be easier to turn C.Fn-09 ON and the slaves will update to the current transmitters settings before each shot.

              And that would be C.Fn-08 with the X1T-O transmitter.

              • Ulysses 3 years ago

                >> So if you are using 2 transmitters with different settings, it should be easier to turn C.Fn-09 ON and the slaves will update to the current transmitters settings before each shot.
                And that would be C.Fn-08 with the X1T-O transmitter. <<

                Thanks for describing that, Elv. I'm super curious to test this out, especially to see if enabling C.Fn-09 for my Nikon cameras and C.Fn-08 on my Olympus camera will provide better compatibility while they fire the same slaves. In my experience, sometimes these sorts of settings can be challenging to test and verify.

                And Godox still has that nagging issue with mixing one camera with an X1T in TTL while using another camera with an X1T in Manual mode. I hope they get the message and can repair that behavior.

  10. Ulysses 3 years ago

    Additionally, someone asked me if the various Godox transmitting devices were cross-brand compatible. In other words, can an X1T transmitter for Olympus control a V860II flash for Canon. The answer is YES you can. You get TTL, Manual, and HSS control. Simply have the proper brand’s device in the hot shoe of your camera, and you can control the receiving device regardless of brand.

    Here’s a little video demonstrating triggering. A bit later I will try to demonstrate Manual and TTL control while cross-brand compatible.


  11. Ulysses 3 years ago

    Marc, I haven’t heard anything about development for an X1R for Olympus. I don’t know if they want to put the resources into it, or at the very least I’m not sure they see a big enough market for it to be profitable.

  12. Andrés Rozo 3 years ago

    Do you have any news regarding the Pentax version?

    • Author
      Flash Havoc 3 years ago

      Hi Andrés,

      Sorry I haven’t heard of any mention of a Pentax version at all. I don’t know what Godox’s future plans are in that regard, though in any case I would imagine they will be spending some time catching their breath after pushing out M4/3 and Fuji. I think its been a big push just to get those out and the full system compatible.

      • Becker 3 years ago

        The next months will be interesting: Godox vs Cactus!
        Cactus will start the Pentax TTL version next and the follow with the MFT version. So for MFT the Godox will be introduced earlier.

        With Cactus you can use your existing flashes, Godox has the much bigger program of new flashes.

        There will be a solution for everyone 🙂

  13. Josh Hall 3 years ago

    Does anyone know how the AF assist works on these? It says “manual open” does that mean you have to press the af assist button, get focus, and then turn it off again before taking the photo? Do the tt350o or tt685o have the same function? Is automatic AF assist possible with panasonics? Or do they not send a signal through the hot shoe? Thanks.

  14. IJdoD 3 years ago

    I’ve been playing around with the X1T-o on my Pana G80. Some interesting findings. With HSS, on camera my TT350o will sync to 1/4000 without visible issues (as in: it works, no banding visible). Slaved to the X1To, it’s max 1/320, and that requires a delay setting of 23 in the custom functions (which are not saved). With the delay and above 1/320 you see either light or dark bands. The issue (bright band on top of the picture) is fairly consistent as shutterspeed increases.

  15. Mark 3 years ago

    Has anyone had any luck getting TTL to work with the Omd em1 mk2 using the x1t-o and a tt600. I can get manual flash to work but not TTL or hss flash. If so a e there some settings I am missing or do I have a bad unit. Thanks

    • John Wilson 3 years ago

      The TT600 doesn’t support TTL only HSS

    • Author
      Flash Havoc 3 years ago

      Hi Mark,

      Yes as John mentions, the TT600 do not support TTL, only HSS.

      Though the TT350o and TT350F have not been able to provide HSS with the TT600 / V850II, or manual strobes using the XTR-16/s receivers.

      So this may well be the case with the X1T-O, and X1T-F trasnsmitter units as well unfortunately. And I don’t know if this is something that’s going to be rectified or not.

  16. Ian 3 years ago

    I think there are other reports of the x1t-o not firing flashes in hss/ttl modes. I hope that it’s just teething troubles as I would like to get one and an AD200 to go along with the V850s I have.

    • Author
      Flash Havoc 3 years ago

      Hi Ian,

      As mentioned above, the TT350o and TT350F have not been able to provide HSS with the TT600 / V850II, or manual strobes (like V850 & AS360) using the XTR-16/s receivers.

      So this may be the case with the X1T-O, and X1T-F trasnsmitter units as well.

      I’m not sure about issues with the X1T-O not firing flashes in TTL though.

      • Ian 3 years ago

        I could have got my wires crossed when it comes to TTL/HSS. Alas I have an older EM-10 MkI so until someone mentions that it works with it I will have to hold off. I don’t use HSS often but it is nice to have occasionally especially with primes and wide open apertures. I use a hack to get HSS with the old FT/FTR-16 transmitter receiver set.

        • Author
          Flash Havoc 3 years ago

          Ok thanks Ian.

          Marc below mentions the TT600 are working in HSS, so the V850’s may be ok then as well.

          (Not sure about the EM-10 MkI compatibility though).

          • Ulysses 3 years ago

            Sorry to get back to this topic so late. I’ve had my hands full with other projects but have been constantly working with the gear.

            I’m happy to say that I’ve tested the TT350Ⓞ and the X1TⓄ on my Olympus E-M1 Mark II, and they trigger lights such as the AD200 and the old V850 (all-manual flash), below x-sync as well as at HSS speeds without any problem whatsoever. Of course, as expected, I need to dial in approx +2 stops of power at the higher shutter speeds. But it all fires and syncs without any problem.

            So my projection at least for Olympus shooters is that you’re fairly good to go. There’s still the nagging issue if you intend to have one transmitting device in TTL mode and another camera with a transmitting device in Manual mode. In that case, things get a bit dicey. Godox DOES need to address this. But it’s easy enough to work around if like myself you prefer to stay in Manual mode anyway.

          • Ian 3 years ago

            So I took the plunge, and now have the X1T-O, V850 with XTR-16s receivers and an AD200. It’s mostly good news with regards to compatibility with the E-M10 Mk1. TTL with the AD200 seems to work well. I can use HSS with the V850 and AD200 but one quirk is that I can’t go past 1/180 if I don’t enable HSS. With a regular flash like the Nissin i40 x-sync is 1/250.

            I hope that helps out other E-M10 Mk1 users who might be thinking about getting the X1T-O/AD200.

  17. Marc 3 years ago

    Just got my TT600 yesterday and after the initial setup struggle that goes with new equipment, HSS works flawlessly with my EM1s. I did order 2 X1Ts so each camera can be switched in use without the hassle to switch the transmitter. Helpful at events.
    I just had a brief moment of confusion as the shutter didn’t fire immediatly when used in HSS and manual mode and set to 1/8000, kind of like a stutter…
    But I guess that is just the aforementioned setup hassle. At the moment I’m testing some more and do a write up for my blog.
    The 2 TT685 will hopefully arrive next week, so I can test TTL capabilities

    So far Im really plesed with the quality of the system!

    • Author
      Flash Havoc 3 years ago

      Great thanks for the feedback Marc!

  18. Marcel 3 years ago

    A german review on this shows that it is working on the E-M1 Mark II with no Problems:

  19. Thommo 3 years ago

    I just purchased the DPII studio flash and X1T-O Trigger. My camera is Olympus OMD E-M1. The X1T-O firmware is v2. The Olympus firmware is v4.3. The E-M1 is set to Fill-in Flash.

    I have tested the units. Using the built-in Godox wifi, the X1T and DPII function correctly when using manual mode to control the DPII. But when I switch the X1 to TTL mode, the DPII display changes to “- -” off and the flash does not fire.

    Any ideas?

    • Author
      Flash Havoc 3 years ago

      Hi Thommo,

      The DPII do not appear to be TTL flashes, so TTL mode is not going to work.

      Godox haven’t released any dedicated AC powered studio lights as yet. The QT600IIM / FP Rapid provide HSS, but not TTL as yet.

  20. John Wilson 3 years ago

    The DPII doesn’t support TTL or HSS.

  21. Mark Z 3 years ago

    Godox X1To with GH5 issue

    On my GH5, with the X1To in manual mode triggering a TT350o there is about half a second delay between pressing the shutter and the picture being taken. On my GX80 it works normally, and the TT350 works directly on the GH5 without a problem. Flash delay is set to off and all groups and channels are set to manual so there shouldn’t be any ttl delay. I have looked at every menu option in the GH5 to see if there is some setting that might affect this but there is nothing I can see. Has anyone else experienced this and could this be a bug or incompatibility issue?

    • Mark Z 3 years ago

      Update: I just got some 2.4GHz receivers for my V850’s and AD360’s and have found the same half second delay using both the X1To and the Tt350o as the master trigger on the GH5. However, I can change the output levels and trigger the remote units via the test button on both units without a problem. So it seems like for now the Godox “O” versions don’t work as master transmitters on the GH5. Hopefully Godox are working on a firmware update for these units, otherwise I can’t mix my older Godox gear with the new stuff or move forward with this system properly, which is a real shame as I really like their stuff. Godox were talking about releasing a generic XT32G that just triggered from the centre pin which would have been great for me, but that seems to have been dropped now, so it looks like I’ll have to get an XT16 for the time being for manual use and go without the HSS functionality for a while longer. Dang! I emailed Godox about this issue five days ago but as yet haven’t had a reply.

  22. Marc 3 years ago

    Just have updated my review of the X1T, the TT600 and the TT685O. Even though it is in German, some here might find it interessting 🙂
    I´m more than pleased with all of the flashes and transmitter. After getting used to how Godox works, everything is just fine. What whows me is the flawless TTL funcionality, either on camera or with the X1T-O in a softbox!

    Fell free to read my findings here:
    X1T: http://www.von-hacht.com/das-neue-blitzsystem-fuer-olympus-godox-x1t-o-fuer-mft/
    TT600: http://www.von-hacht.com/goodox-tt600-mit-hss-fuer-olympus-mft/
    TT685O: http://www.von-hacht.com/goodox-tt685-mit-hss-und-ttl-fuer-olympus-mft/


  23. JL Williams 3 years ago

    Has anyone else encountered an issue with the X1T-O not controlling zoom on units such as the V860-II?

    My X1T-N (Nikon) does, but my X1T-O doesn’t.

    Demo here: https://youtu.be/gxXn1voidQQ

    • Karmran 3 years ago

      I got my X1T-O a few hours ago and been trying all sorts of settings with my 4 TT600 flashes. TTL doesn’t work(as expected), HSS Syncs properly even in single contact mode, multiple flashes, beep on/off both work, Zoom control does NOT work unfortunately. I also noticed that the hotshoe on the X1T-O is a single contact hot shoe.. So no pass through TTL I guess, unlike the canon and Nikon versions. I still have no idea if there is any functionality to the infrared lamp at the front. I was not able to trigger any of my tt600s in optical slave mode using X1T-O. We have a mysterious CFn 8 setting which is not documented…

      • Author
        Flash Havoc 3 years ago

        Hi Karmran,

        Thanks for the feedback. C.Fn-08 updates slave strobes settings to match the transmitter settings before each shot. That’s an option that has been added to try and help with multiple shooters (or multiple cameras) using the same set of slave strobes.

        The red light at the front of the transmitter is Auto Focus Assist light, so there is no optical wireless transmission available from the transmitter. And mirrorless cameras do not always engage an AF assist light like as DSLR’s do, so the lights function is likely to vary with the camera (and possibly camera settings) used.

  24. Karmran 3 years ago

    Following up, a dedicated flash(nissin i40 for m43) did not fire on the hot shoe of the X1T-O, but the TT600 works, and when set to HSS manually it still syncs up to 1/8000s. These settings were tried on the EM5 mark 2.

  25. Roberta 3 years ago

    Sorry if this is in the wrong thread, but I’m having some problems triggering older V360 Nikon flashes wih either the TT350 Olympus or the X1T O as a masters. My flash firmware is v 2.3 and it is mounted on the Flashpoint R2 N (same as Godox X1 receiver for Nikon). Shooting manual flash (which I usually prefer) with the the TT350O as a master, the flash will trigger at powers of 1/16 and .3 or less. At higher powers, while the flash fires, there is a black frame. This is true at any shutter speed (even 250 and lower), whether HSS is being utilized or not. In TTL mode, however, it seems to work at all shutter speeds including HSS territory.

    In contrast, with the X1T O as the master, non-HSS manual flash seems to work normally, but in HSS I get totally black frames unless my flash power is at least 1/4.

    Firmware for the V860N is 2.3; TT350O is v1.1; X1R N is 17.

    Any thoughts would be appreciated.

  26. Sameer 3 years ago

    Unfortunately, I didn’t look into the list of tested cameras and went ahead and ordered one. I have a Panasonic GX7 and I can confirm that X1-O Transmitter does not work with the GX7. I wonder why it is so. I hope they will add the compatibility of GX7 in a future firmware upgrade.

    • Sameer 3 years ago

      Anyone knows if there’s a fix for this?

    • Marcus Nixon 2 years ago

      Any update on this?

  27. John Wilson 3 years ago

    New firmware for this trigger has been released http://www.godox.com/EN/Download.html

    To add C.Fn custom settings.The transmitter’s parameters that set by Godox APP are not changed.And the transmitter is only for triggering.

  28. Zaldy 3 years ago


    I have problem with my X1T-O after upgrade the firmware to V03. The X1T-O can’t work with my AD600BM.
    Has anyone know how to solve this problem?

    Thanks in advance

    • Alois 3 years ago

      Hi Zaldy,

      I’ve got the same issue. AD200 works fine, but the AD600BM somehow recognizes that I’m shooting – the HSS-icon shortly disappears every time a take photo – and I also can control everything else with the x1t-o (TEST button also triggers the flash) but no flash in the normal mode. Multi-mode also works…
      Have you already been able to fix it?

      Thanks and kind regards,

    • brezeljo 2 years ago

      I just made a research for the same problem, and found your comments. I also read from a Fuji user that there is the same issue. It’s a shame that there is no firmware update but for now I use a TT350-o as transmitter. Hope that the Xpro-o comes out soon and without problems. Otherwise a fantastic system 😉

      • Alois 2 years ago

        The old V02 firmware for the transmitter might be the solution, but I can’t find it anywhere…

    • Alois 2 years ago

      V04 is out for the x1t-o – and it solves the issue that it doesn’t fire in the normal mode!!!

  29. RONALD WEISSMAN 2 years ago

    I’ve been trying to trigger an ad200 using the TT 350 Olympus and Sony versions. When set to group A, the ad200 fires but switches to manual mode at 1/128power only, from the tt350-o and zero power in manual mode from the Sony version. This is regardless of whether the ad200 was set originally to TTL or manual mode. Setting the ad200 to a group other than “A”, like “E”, solves the the problem. I am using the latest firmware, 2.1, on both a Flashpoint and a Godox version of the ad200.
    I could find nothing in either manual saying that group A was somehow different from the other groups. If you were having TTL triggering issues you might try to set the ad200 to a group other than A. I have no idea why this is the case and a curious to learn the reason.

  30. Gerald Reynolds 2 years ago

    Ive just bought a Godox X1-TO flash trigger and on the side under a rubber cover are two connections.A PC connection and a USB.But no 2.5mm connection which i was hoping for as in the description its mentioned that there is one.Anyway my problem is that i have a cable with 2.5mm plug on one end and on the other end is a connection for my Olympus camera and i use this to remotely trigger my camera.How can i achieve remote triggering using the above ???

  31. Jacques 2 years ago

    I have tested Flashpoint’s R2 transmitter on my Panasonic GX7, GX85 and GX8 for indoor use without HSS. The GX85 and GX8 seem to be fine. However, with my GX7, it will trigger ONLY if the camera is in AFC autofocus mode. This is with firmware versions 2, 3 & 5 (the latest). I like the Godox system so much that I have now replaced my three GX7s with two GX8s and a GX85.

    FWIW, the R2 is much better at overcoming 2.4 GHz radio interference than the radio built into the Zoom Mini (TT350). In a Manhattan hotel, the Mini could not reliably trigger my off-camera Zoom Li-ons (V860II), even at close range. The R2 was fine even at 100′. Outside of radio-noisy hotels, though, the Mini has worked fine for me.

    If you’re going to be working in big hotels and other venues where there might be a lot interference from cordless phones, microwaves, and LED venue lighting, best to have an R2 handy to slap in between the camera and Mini for triggering off-camera flashes. I’m even keeping my original 433MHz FT-16 triggers as a backup.

    • Sameer 9 months ago

      Hi Jacques. Is there any update with the GX7? Can you suggest any Godox trigger which works with GX7?

  32. Abi Sugeng Ariyanto 1 year ago

    i wanna try this but i use Panasonic GX7. can i work well?? i need this things or any alternative trigger that can work well like TTL or rear sync, slow sync?

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