Quote Originally Posted by Darkroom317 View Post
Which brand is that?
As I understood it, most of the 7 element conters were made by one factory and re-labled to various brands like Kenko, Komura & Vivitar. I have a Kenko 2x for my Mamiya M645 and it's pretty good as converters go. I'd get the Vivitar and try it. KEH has a good return policy so if you don't like it you can send it back.