I've owned a Godox XPro transmitter before, but now I've upgraded to the newer XPro II. And it doesn't have a TCM button. The specs say it does TCM and there's a TCM C.Fn for setting the type of light I'm using. But I can't find anything in the manual about how to actually trigger TCM to convert the TTL-set power level to an M setting. What am I missing?

1 Answer 1


Godox simplified the function. Instead of holding down a TCM button for 2 seconds, all you need to do is change the mode for the Group from TTL to M (like on a Profoto Air). The basic steps are:

  1. Set a group to TTL.
  2. Take a photo.
  3. Select the Group button.
  4. Tap the Mode button to switch from TTL to M.

The power setting that was used in TTL is now a Manual power setting.

See also: the StrobePro XPro II walkthrough on youtube.

  • That's pretty cool to know. I think I'll stick with my vintage Flashpoint "R2 Pro Mark II" version that has the A-B-C-D-E group buttons around the circle/set switch at the bottom, though. Too much muscle memory to try and retrain my fingers to use the buttons up and down the upper left side.
    – Michael C
    Mar 7 at 1:30
  • On the other hand, if you want to go from TTL back to a previously set Manual power setting without using TCM, that could be a real drag that it changes the Manual power setting from where you left it the last time you used Manual power.
    – Michael C
    Mar 7 at 1:34
  • @MichaelC, Not really. The Xpro II also lets you save/load user presets for those configurations you use all the time. :)
    – inkista
    Mar 7 at 23:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.