topic Re: Problems with flash sync in EOS DSLR & Mirrorless Cameras

EOS 6D not getting data back from off-camera flash via iShoot transmitter

NatasaLeoni — Thu, 25 Jan 2024 15:18:54 GMT

Hey guys,

Happy Monday 🙂

I have a Canon 6D and a Canon Speedlight 580 (works great when on camera - no problems at all)

I am now trying to set up a make-do studio situation and am using an 'iShoot' trigger and receiver for the flash.

I have it all set up and when I attach the trigger to my camera and click the 'test' button (on the actual trigger), everything fires and syncs great...so I know the trigger and receiver and flash are all working together. However, my camera is not reading or receiving data from the flash, so when I press the shutter on the camera, the flash doesn't go off.

Does anyone know what I am doing wrong?

I have attached a few photos to help explain what is going on - and a video here

https://www.dropbox.com/sh/q6szv5iol0irjs3/AAB_ssYfeeRIzo69DmRYgeINa?dl=0

THANK YOU

Natasa

Re: Problems with flash sync

Ray-uk — Mon, 19 Feb 2018 13:50:16 GMT

Your pictures are too small to be able read the on-camera messages but I would guess you are trying to use a simple manual only trigger that doesn't send or receive flash data while the camera is in ETTL mode.

Check the manual for your flash trigger to see if it can actually do ETTL.

Re: Problems with flash sync

NatasaLeoni — Mon, 19 Feb 2018 14:06:22 GMT

oops so sorry! first time posting and didn't realise you can't click to enlarge a photo! will change now. thanks!!

So I need to be in ETTL mode?

Re: Problems with flash sync

NatasaLeoni — Mon, 19 Feb 2018 14:06:53 GMT

oops so sorry! first time posting and didn't realise you can't click to enlarge a photo! will change now. thanks!!

So I need to be in ETTL mode?

Re: Problems with flash sync

MikeSowsun — Mon, 19 Feb 2018 14:21:17 GMT

The flash should fire , even if it is in ETTL.

The only thing that will cause it not to fire is using Liveview. Are you using Liveview?

If you are, you can go into the 6D menu and disable “Silent Shooting” and this will allow the flash trigger to fire in Liveview.

Re: Problems with flash sync

NatasaLeoni — Mon, 19 Feb 2018 14:19:14 GMT

This is what all the forums have been saying but I dont use LiveView so I thought it may be something else.

Re: Problems with flash sync

MikeSowsun — Mon, 19 Feb 2018 14:24:01 GMT

I would then make sure the trigger and receiver batteries are fresh. Also try it on another camera.

Re: Problems with flash sync

NatasaLeoni — Mon, 19 Feb 2018 14:48:45 GMT

It is pretty frustrating! Just changed all the batteries and same thing. Tried M and ETTL.

I have take a video just incase it is something SO simple that I am totally missing it:

https://www.dropbox.com/sh/q6szv5iol0irjs3/AAB_ssYfeeRIzo69DmRYgeINa?dl=0

Re: Problems with flash sync

MikeSowsun — Mon, 19 Feb 2018 17:33:29 GMT

Why is there 2 click sounds in the “working” video?

It looks like you have to press the test button twice in order to make it fire.

Re: Problems with flash sync

NatasaLeoni — Mon, 19 Feb 2018 17:28:36 GMT

I had just fired it so it wasn't ready when I first clicked it

Re: Problems with flash sync

MikeSowsun — Mon, 19 Feb 2018 17:34:30 GMT

I guess these units have never worked for you. I did a quick online search and it seems these are not the best quality and you may have a bad one.

Re: Problems with flash sync

Ray-uk — Mon, 19 Feb 2018 19:34:26 GMT

With the transmitter unit off-camera short out either of the 2 side metal contacts with the centre pin contact of the foot with a piece of wire or a paper clip, if it is working then the led on top of the transmitter will flash briefly and the remote flash will fire. If this works then you will know that the unit is operating correctly and the fault must be that it isn't connecting properly with the camera shoe.

Are you sure that you haven't broken any wires inside the unit when you fitted the battery because that is very easily done.

If your unit is like this one with only one central pin on the foot then it is made to be used in manual flash mode only and ETTL control will not work.