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!