I'd like to buy a focal reducer for my new Fujifilm X-E2, but I don't like the price of Metabones Speed Booster which costs a bit more than my camera with 18-55mm lens. I know that when cheap Chinese knock-offs first appeared, they were considered rather bad optically. However, since then new and supposedly improved versions of cheap focal reducers were developed. I personally have heard good things about Mitakon Lens Turbo MkII, but it is not available in the Canon FD flavor that I need. So, my question is: what focal reducers, apart from Metabones Speed Booster, are considered good? Is RJ focal reducer one of the good ones?