I have a Vivitar flash that I love, but it won't work with my Alpha. Well it will work.....once, and then it'll blow some circuits in the camera making it a paperweight. I'm looking at getting one of those safe-sync hotshoe adapters. I'd like to just get a Sony flash that'll allow me to keep the TTL feature, but I don't have $300 for the flash I want right now. So my question is.....do these really work, or should I be worried about it failing and making my camera useless? I was looking at one at the local Henry's camera store for $90. I didn't think to ask him about a warranty against failure of the unit.