Anyone using a nissin mf18 with an a6600

[Unframed Dave]

I've only just acquired this ring flash and am struggling considerably.

First off, I get this message when turning the camera on with the flash attached. View attachment 23452

Apologies for the poor quality, my phone has got vertigo having had a high altitude incident.

I have checked with Nissin's compatibility chart and the a6600 is covered.

I would like some basic pointers to get me going while I further investigate the possibilities of the unit.

Thanks

 

[Unframed Dave]

This is the image that I should have inserted.