Anyone use the Ray Flash Ring?

[craigm84]

It seems like it could be a good attachment for a speed light, though i'd have to upgrade to the 580 in order to use it.

ExpoImaging - Ray Flash: The Ring Flash Adapter

What are your thoughts? Worth getting?

 

[Big Mike]

What would be your purpose for shooting with it?

It's going to give you very flat lighting. The usual purpose is to get round catchlights in your subject's eyes. (or maybe for Macro). Beyond that, I can't see using very much.