645Z Flash won't fire

Pops · 04-26-2022, 12:53 AM

Hi there.
If I set my shutter to fire using 3 sec delay with IR remote release, the flash won't fire. Is this a known issue for the 645Z? It fires on remote release with no delay and normal shutter release.
Thanks.

texandrews · 04-26-2022, 11:31 AM

Originally posted by Pops

Hi there.
If I set my shutter to fire using 3 sec delay with IR remote release, the flash won't fire. Is this a known issue for the 645Z? It fires on remote release with no delay and normal shutter release.
Thanks.

I have not noticed this...but OTOH, not sure I've ever set up this way, may have used MLU instead...

Pops · 04-26-2022, 12:17 PM

Originally posted by texandrews

I have not noticed this...but OTOH, not sure I've ever set up this way, may have used MLU instead...

I don't normally shoot like this either. I was testing some strobe setups using myself as the subject and I didn't really want the images showing me pointing the remote trigger at the camera. It doesn't really matter, the anomaly just caught me by surprise. I had a Godox XPro P as a trigger on the hotshoe but I doubt that would make any difference. Either the hotshoe fires or it doesn't.

C_Jones · 04-26-2022, 02:06 PM

I have the XPro-P also. I have never had any errors with it strictly firing with no delay, and that is basically the way I use it. It may be that since the transmitter is working strictly in its own Godox function commands that it does not recognize the delay command you are testing with. If I wanted to do the delay setting on the camera, I would use it in association with pressing the shutter button on the camera and let it go from there if I had the XPro-P on it. I have not tried it yet, but that is the way that I would probably approach it. These are just possibilities that I am expressing. The XPro-P may not be recognizing the infrared signaling activation as opposed to the regular shutter button activation on the camera itself, which also may be just a possibility.

Last edited by C_Jones; 04-26-2022 at 02:20 PM.

**ProfessorBuzz** · 04-26-2022, 03:42 PM

I just tried this - and I think you've discovered a genuine bug in the Godox firmware. We should probably report this to Godox.

I have the latest 1.2 firmware in the XPro-P, and I think in the strobe as well (AD200, and I have the bigger ones 400pro, 600pro).

With the Godox XPro-P in M mode, as you say, Remote with 3s delay did not fire the Godox XPro-P and AD200 connected.With the Godox XPro-P in TTL mode, it fired the flash once, then 3s delay, then fired again. But it looks out of sync - dark image, except bright at the bottom.

With it set to Remote, without the delay, it worked fine. Remote continuous shooting also worked (although I had trouble getting it to stop with the second press - I suspect the flash was overwhelming the sensor).

I checked that I have the latest firmware in the Godox equipment, and I do.

I tried same with AF540FGZII, and it worked like so:
P-TTL mode, fired once for metering as the mirror went up, then fired again, in sync, no issue with 3second delay.
M mode, fired only once after 3 second delay.

**ProfessorBuzz** · 04-27-2022, 05:58 AM

A quick test on a K1 with 3s delayed remote has a similar problem.

---------- Post added 04-27-22 at 09:18 AM ----------

I sent Godox a note via Feedback or Proposal on this page:
Flash-GODOX Photo Equipment Co.,Ltd.
Please contact them as well, so that they do something about this.

Pops · 04-28-2022, 02:30 AM

I tried the same scenario using an old generic Interfit trigger which just has centre pin only on the hot shoe that fires a Honey Badger. The flash fired using IR remote with 3s delay. I guess it's a Godox XPro issue then.

**ProfessorBuzz** · 04-28-2022, 09:20 AM

Originally posted by Pops

I tried the same scenario using an old generic Interfit trigger which just has centre pin only on the hot shoe that fires a Honey Badger. The flash fired using IR remote with 3s delay. I guess it's a Godox XPro issue then.

Yes, it seems to be. Contact Godox, like I suggested.

04-26-2022, 12:53 AM	#1
Pops Junior Member Join Date: Apr 2022 Location: Suffolk Posts: 35	645Z Flash won't fire Hi there. If I set my shutter to fire using 3 sec delay with IR remote release, the flash won't fire. Is this a known issue for the 645Z? It fires on remote release with no delay and normal shutter release. Thanks.

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04-26-2022, 11:31 AM	#2
texandrews Moderator Join Date: Apr 2014 Location: Baltimore Photos: Albums Posts: 3,393	Originally posted by Pops Hi there. If I set my shutter to fire using 3 sec delay with IR remote release, the flash won't fire. Is this a known issue for the 645Z? It fires on remote release with no delay and normal shutter release. Thanks. I have not noticed this...but OTOH, not sure I've ever set up this way, may have used MLU instead...

04-26-2022, 12:17 PM	#3
Pops Junior Member Join Date: Apr 2022 Location: Suffolk Posts: 35 Original Poster	Originally posted by texandrews I have not noticed this...but OTOH, not sure I've ever set up this way, may have used MLU instead... I don't normally shoot like this either. I was testing some strobe setups using myself as the subject and I didn't really want the images showing me pointing the remote trigger at the camera. It doesn't really matter, the anomaly just caught me by surprise. I had a Godox XPro P as a trigger on the hotshoe but I doubt that would make any difference. Either the hotshoe fires or it doesn't.

04-26-2022, 02:06 PM	#4
C_Jones Pentaxian Join Date: Sep 2012 Location: NY Photos: Gallery \| Albums Posts: 6,088	I have the XPro-P also. I have never had any errors with it strictly firing with no delay, and that is basically the way I use it. It may be that since the transmitter is working strictly in its own Godox function commands that it does not recognize the delay command you are testing with. If I wanted to do the delay setting on the camera, I would use it in association with pressing the shutter button on the camera and let it go from there if I had the XPro-P on it. I have not tried it yet, but that is the way that I would probably approach it. These are just possibilities that I am expressing. The XPro-P may not be recognizing the infrared signaling activation as opposed to the regular shutter button activation on the camera itself, which also may be just a possibility. Last edited by C_Jones; 04-26-2022 at 02:20 PM.

04-26-2022, 03:42 PM	#5
ProfessorBuzz Loyal Site Supporter Join Date: Feb 2018 Posts: 1,903	I just tried this - and I think you've discovered a genuine bug in the Godox firmware. We should probably report this to Godox. I have the latest 1.2 firmware in the XPro-P, and I think in the strobe as well (AD200, and I have the bigger ones 400pro, 600pro). With the Godox XPro-P in M mode, as you say, Remote with 3s delay did not fire the Godox XPro-P and AD200 connected.With the Godox XPro-P in TTL mode, it fired the flash once, then 3s delay, then fired again. But it looks out of sync - dark image, except bright at the bottom. With it set to Remote, without the delay, it worked fine. Remote continuous shooting also worked (although I had trouble getting it to stop with the second press - I suspect the flash was overwhelming the sensor). I checked that I have the latest firmware in the Godox equipment, and I do. I tried same with AF540FGZII, and it worked like so: P-TTL mode, fired once for metering as the mirror went up, then fired again, in sync, no issue with 3second delay. M mode, fired only once after 3 second delay.

04-27-2022, 05:58 AM	#6
ProfessorBuzz Loyal Site Supporter Join Date: Feb 2018 Posts: 1,903	A quick test on a K1 with 3s delayed remote has a similar problem. ---------- Post added 04-27-22 at 09:18 AM ---------- I sent Godox a note via Feedback or Proposal on this page: Flash-GODOX Photo Equipment Co.,Ltd. Please contact them as well, so that they do something about this.

04-28-2022, 02:30 AM	#7
Pops Junior Member Join Date: Apr 2022 Location: Suffolk Posts: 35 Original Poster	I tried the same scenario using an old generic Interfit trigger which just has centre pin only on the hot shoe that fires a Honey Badger. The flash fired using IR remote with 3s delay. I guess it's a Godox XPro issue then.

04-28-2022, 09:20 AM	#8
ProfessorBuzz Loyal Site Supporter Join Date: Feb 2018 Posts: 1,903	Originally posted by Pops I tried the same scenario using an old generic Interfit trigger which just has centre pin only on the hot shoe that fires a Honey Badger. The flash fired using IR remote with 3s delay. I guess it's a Godox XPro issue then. Yes, it seems to be. Contact Godox, like I suggested.