Hi !

This not the topic that I wanted to post for my fist post but I'm looking a specific feedback regarding the use of UWTechnics TTL converter 11075 for Sony and an A7RV.

I've just recieved my new gear and I'm getting the following error message on the A7RV when connecting the hotshoe off the converter :

The external flash is not attached correctly or is not supported.

Can someone confirm me if when the TTL converter is connected to the camera, the same error message appears ? Or is this only with mine ?

I did futher testing with the following gear for the tests :

• Sony A7RV with 4.00 firmware

• Sony 100mm GM 2.8 / Sony 28-60

• TTL converter 11075 (new batteries in)

• Retra Pro Strobes (firmware up to date)

When taking a picture, the converter does trigger the flashs (Retra PRO) but there is no TTL.
With the same fixed parameters (ISO, SS), the images goes to underexposed to overexposed when changing aperture (I've been trying from f2.8 to f22 ).

I even cleaned the hotshoe contacts on both camera and converter but same result ...

Does anybody have been struggling with the same configuration ?

I had a D850 with Pavel TTL converter for years and never had encoutered this behavior.

Many thanks,

Clément

Welcome to the forums 🙂

Have you set the dial on the UWT trigger to the relevant setting for your strobe? And I think for TTL you'd need to make sure "WL" is off in the camera settings too.

I think option 7 is for retra pro max, I'm assuming it will be the same for the pro but not certain!

Hello Yorkie !

Indeed, I forgot to mentioned it in the gear configuration.

Everything is set according to UWTechnics manual : Position 7 on the board for the Retra, WL is off in the camera, only mechanical shutter, power save to 10sec, etc.

The following image is taken from the manual and you can see that all the flash modes are usable.

In my case, the first one is grey and when try to select it, it gives me the error message.

I'm starting to think it is a defective unit as the error message seems not to be encoutered by others ?

Edited 4 hours ago4 hr by Abycimes

Those settings make sense to me!

I don't think I've ever seen that message come up, the pins can be tricky in the Sony hotshoe but it sounds like you've already cleaned them up etc.

If you reach out to UWTechnics I'm sure he'll help you troubleshoot and confirm any issue if it might be the trigger board. I've asked him a couple of questions before and he's always been helpful and quick to reply 🙂

If it's the Pro but not the Pro Max, maybe the TTL is different - Pavel will know! But I don't think that error message should be popping up either way.

3 hours ago, Abycimes said:

Hello Yorkie !

Indeed, I forgot to mentioned it in the gear configuration.

Everything is set according to UWTechnics manual : Position 7 on the board for the Retra, WL is off in the camera, only mechanical shutter, power save to 10sec, etc.

The following image is taken from the manual and you can see that all the flash modes are usable.

In my case, the first one is grey and when try to select it, it gives me the error message.

I'm starting to think it is a defective unit as the error message seems not to be encoutered by others ?

I'd suggest to PM Pavel, he's on this forum.

9 minutes ago, Chris Ross said:

I'd suggest to PM Pavel, he's on this forum.

Thanks Chriss,

I did before posting here ! Pavel send me back to my retailer whom was not able to apprehend the problem without the gear.

Before sending back the TTL converter for an exchange, I wanted to be sur there was no other fix or that the error message was the sign of a defective unit.

4 minutes ago, Abycimes said:

Thanks Chriss,

I did before posting here ! Pavel send me back to my retailer whom was not able to apprehend the problem without the gear.

Before sending back the TTL converter for an exchange, I wanted to be sur there was no other fix or that the error message was the sign of a defective unit.

I'd contact him again to let him know the retailer was not helpful and see if he will confirm that this requires a return.